2113431212204 has 96 divisors (see below), whose sum is σ = 4131702328320. Its totient is φ = 939555493632.

The previous prime is 2113431212203. The next prime is 2113431212231. The reversal of 2113431212204 is 4022121343112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (2113431212203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429644057 + ... + 429648975.

It is an arithmetic number, because the mean of its divisors is an integer number (43038565920).

Almost surely, 2^{2113431212204} is an apocalyptic number.

It is an amenable number.

2113431212204 is a deficient number, since it is larger than the sum of its proper divisors (2018271116116).

2113431212204 is a wasteful number, since it uses less digits than its factorization.

2113431212204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167 (or 7165 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2113431212204 its reverse (4022121343112), we get a palindrome (6135552555316).

The spelling of 2113431212204 in words is "two trillion, one hundred thirteen billion, four hundred thirty-one million, two hundred twelve thousand, two hundred four".