31224545130 has 16 divisors (see below), whose sum is σ = 74938908384. Its totient is φ = 8326545360.

The previous prime is 31224545101. The next prime is 31224545173. The reversal of 31224545130 is 3154542213.

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: 1040818171 = 31224545130 / (3 + 1 + 2 + 2 + 4 + 5 + 4 + 5 + 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, 520409056 + ... + 520409115.

It is an arithmetic number, because the mean of its divisors is an integer number (4683681774).

Almost surely, 2^31224545130 is an apocalyptic number.

31224545130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31224545130 is an abundant number, since it is smaller than the sum of its proper divisors (43714363254).

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

31224545130 is a wasteful number, since it uses less digits than its factorization.

31224545130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040818181.

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

The spelling of 31224545130 in words is "thirty-one billion, two hundred twenty-four million, five hundred forty-five thousand, one hundred thirty".