113021212120 has 32 divisors (see below), whose sum is σ = 254504416320. Its totient is φ = 45171740160.

The previous prime is 113021212111. The next prime is 113021212123. The reversal of 113021212120 is 21212120311.

It is a junction number, because it is equal to n+sod(n) for n = 113021212094 and 113021212103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113021212123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098417 + ... + 1196896.

It is an arithmetic number, because the mean of its divisors is an integer number (7953263010).

Almost surely, 2^113021212120 is an apocalyptic number.

113021212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113021212120 is an abundant number, since it is smaller than the sum of its proper divisors (141483204200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113021212120 is a wasteful number, since it uses less digits than its factorization.

113021212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296555 (or 2296551 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 113021212120 its reverse (21212120311), we get a palindrome (134233332431).

The spelling of 113021212120 in words is "one hundred thirteen billion, twenty-one million, two hundred twelve thousand, one hundred twenty".