113231211120 has 80 divisors (see below), whose sum is σ = 390018623520. Its totient is φ = 30194989056.

The previous prime is 113231211101. The next prime is 113231211127. The reversal of 113231211120 is 21112132311.

113231211120 is a `hidden beast` number, since 11 + 323 + 1 + 211 + 120 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 113231211093 and 113231211102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113231211127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26208769 + ... + 26213088.

It is an arithmetic number, because the mean of its divisors is an integer number (4875232794).

Almost surely, 2^113231211120 is an apocalyptic number.

113231211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113231211120 is an abundant number, since it is smaller than the sum of its proper divisors (276787412400).

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

113231211120 is a wasteful number, since it uses less digits than its factorization.

113231211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52421879 (or 52421867 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 113231211120 its reverse (21112132311), we get a palindrome (134343343431).

The spelling of 113231211120 in words is "one hundred thirteen billion, two hundred thirty-one million, two hundred eleven thousand, one hundred twenty".