31212031130330 has 8 divisors (see below), whose sum is σ = 56181656034612. Its totient is φ = 12484812452128.

The previous prime is 31212031130251. The next prime is 31212031130347. The reversal of 31212031130330 is 3303113021213.

It can be written as a sum of positive squares in 2 ways, for example, as 31102917846001 + 109113284329 = 5576999^2 + 330323^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31212031130296 and 31212031130305.

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 3 ways as a sum of consecutive naturals, for example, 1560601556507 + ... + 1560601556526.

Almost surely, 2^{31212031130330} is an apocalyptic number.

31212031130330 is a deficient number, since it is larger than the sum of its proper divisors (24969624904282).

31212031130330 is a wasteful number, since it uses less digits than its factorization.

31212031130330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121203113040.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31212031130330 its reverse (3303113021213), we get a palindrome (34515144151543).

The spelling of 31212031130330 in words is "thirty-one trillion, two hundred twelve billion, thirty-one million, one hundred thirty thousand, three hundred thirty".