113231111040 has 384 divisors, whose sum is σ = 412439040000. Its totient is φ = 28546117632.

The previous prime is 113231111029. The next prime is 113231111053. The reversal of 113231111040 is 40111132311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

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 47 ways as a sum of consecutive naturals, for example, 78686641 + ... + 78688079.

It is an arithmetic number, because the mean of its divisors is an integer number (1074060000).

Almost surely, 2^113231111040 is an apocalyptic number.

113231111040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113231111040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206219520000).

113231111040 is an abundant number, since it is smaller than the sum of its proper divisors (299207928960).

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

113231111040 is a wasteful number, since it uses less digits than its factorization.

113231111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202 (or 2187 counting only the distinct ones).

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

Adding to 113231111040 its reverse (40111132311), we get a palindrome (153342243351).

The spelling of 113231111040 in words is "one hundred thirteen billion, two hundred thirty-one million, one hundred eleven thousand, forty".