312021430130402 has 16 divisors (see below), whose sum is σ = 491860305955392. Its totient is φ = 148264111361520.

The previous prime is 312021430130383. The next prime is 312021430130407. The reversal of 312021430130402 is 204031034120213.

It is not an unprimeable number, because it can be changed into a prime (312021430130407) 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, 49029134174 + ... + 49029140537.

It is an arithmetic number, because the mean of its divisors is an integer number (30741269122212).

Almost surely, 2^{312021430130402} is an apocalyptic number.

312021430130402 is a deficient number, since it is larger than the sum of its proper divisors (179838875824990).

312021430130402 is a wasteful number, since it uses less digits than its factorization.

312021430130402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98058274793.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312021430130402 its reverse (204031034120213), we get a palindrome (516052464250615).

The spelling of 312021430130402 in words is "three hundred twelve trillion, twenty-one billion, four hundred thirty million, one hundred thirty thousand, four hundred two".