3131212102 has 16 divisors (see below), whose sum is σ = 4862333952. Its totient is φ = 1510725960.

The previous prime is 3131212093. The next prime is 3131212127. The reversal of 3131212102 is 2012121313.

It is a super-2 number, since 2×3131212102² = 19608978455422516808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 51258 + ... + 94285.

It is an arithmetic number, because the mean of its divisors is an integer number (303895872).

Almost surely, 2^3131212102 is an apocalyptic number.

3131212102 is a deficient number, since it is larger than the sum of its proper divisors (1731121850).

3131212102 is a wasteful number, since it uses less digits than its factorization.

3131212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145923.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3131212102 is about 55957.2345814194. The cubic root of 3131212102 is about 1462.9769903657.

Adding to 3131212102 its reverse (2012121313), we get a palindrome (5143333415).

The spelling of 3131212102 in words is "three billion, one hundred thirty-one million, two hundred twelve thousand, one hundred two".