2100113231 has 4 divisors (see below), whose sum is σ = 2103379992. Its totient is φ = 2096846472.

The previous prime is 2100113209. The next prime is 2100113261. The reversal of 2100113231 is 1323110012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2100113231 - 2¹⁰ = 2100112207 is a prime.

It is a super-2 number, since 2×2100113231² = 8820951166042518722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100113261) 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, 1632416 + ... + 1633701.

It is an arithmetic number, because the mean of its divisors is an integer number (525844998).

Almost surely, 2^2100113231 is an apocalyptic number.

2100113231 is a deficient number, since it is larger than the sum of its proper divisors (3266761).

2100113231 is an equidigital number, since it uses as much as digits as its factorization.

2100113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266760.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2100113231 is about 45826.9923844016. The cubic root of 2100113231 is about 1280.6021806468.

Adding to 2100113231 its reverse (1323110012), we get a palindrome (3423223243).

The spelling of 2100113231 in words is "two billion, one hundred million, one hundred thirteen thousand, two hundred thirty-one".