31300123032 has 40 divisors (see below), whose sum is σ = 87669327900. Its totient is φ = 10433374128.

The previous prime is 31300123021. The next prime is 31300123051. The reversal of 31300123032 is 23032100313.

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

It is a junction number, because it is equal to n+sod(n) for n = 31300122996 and 31300123014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24150682 + ... + 24151977.

Almost surely, 2^31300123032 is an apocalyptic number.

It is an amenable number.

31300123032 is an abundant number, since it is smaller than the sum of its proper divisors (56369204868).

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

31300123032 is a wasteful number, since it uses less digits than its factorization.

31300123032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48302677 (or 48302664 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31300123032 its reverse (23032100313), we get a palindrome (54332223345).

The spelling of 31300123032 in words is "thirty-one billion, three hundred million, one hundred twenty-three thousand, thirty-two".