2140420101 has 4 divisors (see below), whose sum is σ = 2853893472. Its totient is φ = 1426946732.

The previous prime is 2140420099. The next prime is 2140420103. The reversal of 2140420101 is 1010240412.

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 an interprime number because it is at equal distance from previous prime (2140420099) and next prime (2140420103).

It is a cyclic number.

It is not a de Polignac number, because 2140420101 - 2¹ = 2140420099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140420103) 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, 356736681 + ... + 356736686.

It is an arithmetic number, because the mean of its divisors is an integer number (713473368).

Almost surely, 2^2140420101 is an apocalyptic number.

It is an amenable number.

2140420101 is a deficient number, since it is larger than the sum of its proper divisors (713473371).

2140420101 is an equidigital number, since it uses as much as digits as its factorization.

2140420101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713473370.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2140420101 is about 46264.6744395765. The cubic root of 2140420101 is about 1288.7430620756.

Adding to 2140420101 its reverse (1010240412), we get a palindrome (3150660513).

The spelling of 2140420101 in words is "two billion, one hundred forty million, four hundred twenty thousand, one hundred one".