113111131302 has 192 divisors, whose sum is σ = 285843841920. Its totient is φ = 32035627008.

The previous prime is 113111131297. The next prime is 113111131351. The reversal of 113111131302 is 203131111311.

113111131302 is a `hidden beast` number, since 11 + 311 + 11 + 31 + 302 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55094508 + ... + 55096560.

It is an arithmetic number, because the mean of its divisors is an integer number (1488770010).

Almost surely, 2^113111131302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113111131302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142921920960).

113111131302 is an abundant number, since it is smaller than the sum of its proper divisors (172732710618).

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

113111131302 is a wasteful number, since it uses less digits than its factorization.

113111131302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 113111131302 its reverse (203131111311), we get a palindrome (316242242613).

The spelling of 113111131302 in words is "one hundred thirteen billion, one hundred eleven million, one hundred thirty-one thousand, three hundred two".