31504544130 has 16 divisors (see below), whose sum is σ = 75610905984. Its totient is φ = 8401211760.

The previous prime is 31504544117. The next prime is 31504544167. The reversal of 31504544130 is 3144540513.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1050151471 = 31504544130 / (3 + 1 + 5 + 0 + 4 + 5 + 4 + 4 + 1 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525075706 + ... + 525075765.

It is an arithmetic number, because the mean of its divisors is an integer number (4725681624).

Almost surely, 2^31504544130 is an apocalyptic number.

31504544130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31504544130 is an abundant number, since it is smaller than the sum of its proper divisors (44106361854).

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

31504544130 is a wasteful number, since it uses less digits than its factorization.

31504544130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050151481.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 31504544130 in words is "thirty-one billion, five hundred four million, five hundred forty-four thousand, one hundred thirty".