13031877730 has 32 divisors (see below), whose sum is σ = 23607050544. Its totient is φ = 5179597056.

The previous prime is 13031877701. The next prime is 13031877737. The reversal of 13031877730 is 3777813031.

It can be written as a sum of positive squares in 8 ways, for example, as 3200956929 + 9830920801 = 56577^2 + 99151^2 .

It is not an unprimeable number, because it can be changed into a prime (13031877737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026904 + ... + 1039516.

Almost surely, 2^13031877730 is an apocalyptic number.

13031877730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13031877730 is a deficient number, since it is larger than the sum of its proper divisors (10575172814).

13031877730 is a wasteful number, since it uses less digits than its factorization.

13031877730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13270.

The product of its (nonzero) digits is 74088, while the sum is 40.

The spelling of 13031877730 in words is "thirteen billion, thirty-one million, eight hundred seventy-seven thousand, seven hundred thirty".