113203212213 has 96 divisors (see below), whose sum is σ = 196217398272. Its totient is φ = 57480192000.

The previous prime is 113203212179. The next prime is 113203212223. The reversal of 113203212213 is 312212302311.

It is not a de Polignac number, because 113203212213 - 2²⁰ = 113202163637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113203212213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113203212223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11428563 + ... + 11438463.

It is an arithmetic number, because the mean of its divisors is an integer number (2043931232).

Almost surely, 2^113203212213 is an apocalyptic number.

113203212213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113203212213 is a deficient number, since it is larger than the sum of its proper divisors (83014186059).

113203212213 is a wasteful number, since it uses less digits than its factorization.

113203212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155 (or 10148 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 113203212213 its reverse (312212302311), we get a palindrome (425415514524).

The spelling of 113203212213 in words is "one hundred thirteen billion, two hundred three million, two hundred twelve thousand, two hundred thirteen".