121401113 has 4 divisors (see below), whose sum is σ = 121655040. Its totient is φ = 121147188.

The previous prime is 121401109. The next prime is 121401149. The reversal of 121401113 is 311104121.

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.

It is a cyclic number.

It is not a de Polignac number, because 121401113 - 2² = 121401109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121401103) 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, 126245 + ... + 127202.

It is an arithmetic number, because the mean of its divisors is an integer number (30413760).

Almost surely, 2^121401113 is an apocalyptic number.

It is an amenable number.

121401113 is a deficient number, since it is larger than the sum of its proper divisors (253927).

121401113 is an equidigital number, since it uses as much as digits as its factorization.

121401113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253926.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 121401113 is about 11018.2173240502. The cubic root of 121401113 is about 495.1546814484.

Adding to 121401113 its reverse (311104121), we get a palindrome (432505234).

The spelling of 121401113 in words is "one hundred twenty-one million, four hundred one thousand, one hundred thirteen".