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120011401 = 235217887
BaseRepresentation
bin1110010011100…
…11101010001001
322100211012200201
413021303222021
5221210331101
615524132201
72655036316
oct711635211
9270735621
10120011401
116181a384
1234237061
131bb2c183
1411d1dd0d
15a808e01
hex7273a89

120011401 has 4 divisors (see below), whose sum is σ = 125229312. Its totient is φ = 114793492.

The previous prime is 120011393. The next prime is 120011413. The reversal of 120011401 is 104110021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104110021 = 400126021.

It is a cyclic number.

It is not a de Polignac number, because 120011401 - 23 = 120011393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120011431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2608921 + ... + 2608966.

It is an arithmetic number, because the mean of its divisors is an integer number (31307328).

Almost surely, 2120011401 is an apocalyptic number.

It is an amenable number.

120011401 is a deficient number, since it is larger than the sum of its proper divisors (5217911).

120011401 is an equidigital number, since it uses as much as digits as its factorization.

120011401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217910.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 120011401 is about 10954.9715198169. The cubic root of 120011401 is about 493.2580350847.

Adding to 120011401 its reverse (104110021), we get a palindrome (224121422).

The spelling of 120011401 in words is "one hundred twenty million, eleven thousand, four hundred one".

Divisors: 1 23 5217887 120011401