31212130002 has 16 divisors (see below), whose sum is σ = 62426144352. Its totient is φ = 10403729280.

The previous prime is 31212129961. The next prime is 31212130049. The reversal of 31212130002 is 20003121213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230178 + ... + 339714.

It is an arithmetic number, because the mean of its divisors is an integer number (3901634022).

Almost surely, 2^31212130002 is an apocalyptic number.

31212130002 is an abundant number, since it is smaller than the sum of its proper divisors (31214014350).

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

31212130002 is a wasteful number, since it uses less digits than its factorization.

31212130002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157033.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31212130002 its reverse (20003121213), we get a palindrome (51215251215).

The spelling of 31212130002 in words is "thirty-one billion, two hundred twelve million, one hundred thirty thousand, two".