123302031000 has 128 divisors (see below), whose sum is σ = 385055424000. Its totient is φ = 32850364800.

The previous prime is 123302030993. The next prime is 123302031029. The reversal of 123302031000 is 130203321.

It is a super-2 number, since 2×123302031000² (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, 3350701 + ... + 3387299.

It is an arithmetic number, because the mean of its divisors is an integer number (3008245500).

Almost surely, 2^123302031000 is an apocalyptic number.

123302031000 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 123302031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192527712000).

123302031000 is an abundant number, since it is smaller than the sum of its proper divisors (261753393000).

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

123302031000 is a wasteful number, since it uses less digits than its factorization.

123302031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37746 (or 37732 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 123302031000 its reverse (130203321), we get a palindrome (123432234321).

The spelling of 123302031000 in words is "one hundred twenty-three billion, three hundred two million, thirty-one thousand".