31500654002130 has 32 divisors (see below), whose sum is σ = 75609581471424. Its totient is φ = 8399284193216.

The previous prime is 31500654002039. The next prime is 31500654002149. The reversal of 31500654002130 is 3120045600513.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 55350132 + ... + 55916351.

It is an arithmetic number, because the mean of its divisors is an integer number (2362799420982).

Almost surely, 2^{31500654002130} is an apocalyptic number.

31500654002130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31500654002130 is an abundant number, since it is smaller than the sum of its proper divisors (44108927469294).

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

31500654002130 is a wasteful number, since it uses less digits than its factorization.

31500654002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111275930.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 31500654002130 its reverse (3120045600513), we get a palindrome (34620699602643).

The spelling of 31500654002130 in words is "thirty-one trillion, five hundred billion, six hundred fifty-four million, two thousand, one hundred thirty".