31330212123130 has 16 divisors (see below), whose sum is σ = 56443292841384. Its totient is φ = 12521215733760.

The previous prime is 31330212123113. The next prime is 31330212123157. The reversal of 31330212123130 is 3132121203313.

It can be written as a sum of positive squares in 4 ways, for example, as 31228616298049 + 101595825081 = 5588257^2 + 318741^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31330212123095 and 31330212123104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358627331 + ... + 1358650390.

Almost surely, 2^{31330212123130} is an apocalyptic number.

31330212123130 is a deficient number, since it is larger than the sum of its proper divisors (25113080718254).

31330212123130 is a wasteful number, since it uses less digits than its factorization.

31330212123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717278881.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31330212123130 its reverse (3132121203313), we get a palindrome (34462333326443).

The spelling of 31330212123130 in words is "thirty-one trillion, three hundred thirty billion, two hundred twelve million, one hundred twenty-three thousand, one hundred thirty".