31002023030 has 32 divisors (see below), whose sum is σ = 60955620768. Its totient is φ = 11258848000.

The previous prime is 31002023027. The next prime is 31002023047. The reversal of 31002023030 is 3032020013.

It is a super-2 number, since 2×31002023030² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31002022996 and 31002023014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97271 + ... + 267330.

It is an arithmetic number, because the mean of its divisors is an integer number (1904863149).

Almost surely, 2^31002023030 is an apocalyptic number.

31002023030 is a deficient number, since it is larger than the sum of its proper divisors (29953597738).

31002023030 is a wasteful number, since it uses less digits than its factorization.

31002023030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365392.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 31002023030 its reverse (3032020013), we get a palindrome (34034043043).

The spelling of 31002023030 in words is "thirty-one billion, two million, twenty-three thousand, thirty".