113031123000 has 128 divisors (see below), whose sum is σ = 355350378240. Its totient is φ = 29911440000.

The previous prime is 113031122993. The next prime is 113031123031. The reversal of 113031123000 is 321130311.

It is a super-2 number, since 2×113031123000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249195 + ... + 536805.

It is an arithmetic number, because the mean of its divisors is an integer number (2776174830).

Almost surely, 2^113031123000 is an apocalyptic number.

113031123000 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 113031123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177675189120).

113031123000 is an abundant number, since it is smaller than the sum of its proper divisors (242319255240).

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

113031123000 is a wasteful number, since it uses less digits than its factorization.

113031123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287766 (or 287752 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 113031123000 its reverse (321130311), we get a palindrome (113352253311).

The spelling of 113031123000 in words is "one hundred thirteen billion, thirty-one million, one hundred twenty-three thousand".