31331310330130 has 32 divisors (see below), whose sum is σ = 56898844858800. Its totient is φ = 12420873787392.

The previous prime is 31331310330119. The next prime is 31331310330157. The reversal of 31331310330130 is 3103301313313.

It can be written as a sum of positive squares in 8 ways, for example, as 488848477329 + 30842461852801 = 699177^2 + 5553599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31331310330095 and 31331310330104.

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, 18263716 + ... + 19905424.

Almost surely, 2^{31331310330130} is an apocalyptic number.

31331310330130 is a deficient number, since it is larger than the sum of its proper divisors (25567534528670).

31331310330130 is a wasteful number, since it uses less digits than its factorization.

31331310330130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658718.

The product of its (nonzero) digits is 2187, while the sum is 25.

Adding to 31331310330130 its reverse (3103301313313), we get a palindrome (34434611643443).

The spelling of 31331310330130 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred ten million, three hundred thirty thousand, one hundred thirty".