113031012440 has 16 divisors (see below), whose sum is σ = 254319778080. Its totient is φ = 45212404960.

The previous prime is 113031012397. The next prime is 113031012463. The reversal of 113031012440 is 44210130311.

It is a super-2 number, since 2×113031012440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412887616 + ... + 1412887695.

It is an arithmetic number, because the mean of its divisors is an integer number (15894986130).

Almost surely, 2^113031012440 is an apocalyptic number.

113031012440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113031012440 is an abundant number, since it is smaller than the sum of its proper divisors (141288765640).

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

113031012440 is a wasteful number, since it uses less digits than its factorization.

113031012440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825775322 (or 2825775318 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 113031012440 its reverse (44210130311), we get a palindrome (157241142751).

The spelling of 113031012440 in words is "one hundred thirteen billion, thirty-one million, twelve thousand, four hundred forty".