312113021302 has 16 divisors (see below), whose sum is σ = 474117719040. Its totient is φ = 154073965032.

The previous prime is 312113021293. The next prime is 312113021309. The reversal of 312113021302 is 203120311213.

It is a self number, because there is not a number n which added to its sum of digits gives 312113021302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312113021309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5454613 + ... + 5511535.

It is an arithmetic number, because the mean of its divisors is an integer number (29632357440).

Almost surely, 2^312113021302 is an apocalyptic number.

312113021302 is a deficient number, since it is larger than the sum of its proper divisors (162004697738).

312113021302 is a wasteful number, since it uses less digits than its factorization.

312113021302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91707.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312113021302 its reverse (203120311213), we get a palindrome (515233332515).

The spelling of 312113021302 in words is "three hundred twelve billion, one hundred thirteen million, twenty-one thousand, three hundred two".