31300231203100 has 18 divisors (see below), whose sum is σ = 67921501710944. Its totient is φ = 12520092481200.

The previous prime is 31300231203079. The next prime is 31300231203113. The reversal of 31300231203100 is 130213200313.

It is a super-2 number, since 2×31300231203100² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156501155916 + ... + 156501156115.

Almost surely, 2^{31300231203100} is an apocalyptic number.

It is an amenable number.

31300231203100 is an abundant number, since it is smaller than the sum of its proper divisors (36621270507844).

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

31300231203100 is a wasteful number, since it uses less digits than its factorization.

31300231203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313002312045 (or 313002312038 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31300231203100 its reverse (130213200313), we get a palindrome (31430444403413).

The spelling of 31300231203100 in words is "thirty-one trillion, three hundred billion, two hundred thirty-one million, two hundred three thousand, one hundred".