312403330023402 has 64 divisors (see below), whose sum is σ = 636871444992000. Its totient is φ = 102138028016640.

The previous prime is 312403330023401. The next prime is 312403330023409. The reversal of 312403330023402 is 204320033304213.

It is a self number, because there is not a number n which added to its sum of digits gives 312403330023402.

It is not an unprimeable number, because it can be changed into a prime (312403330023401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84651877 + ... + 88265207.

It is an arithmetic number, because the mean of its divisors is an integer number (9951116328000).

Almost surely, 2^{312403330023402} is an apocalyptic number.

312403330023402 is an abundant number, since it is smaller than the sum of its proper divisors (324468114968598).

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

312403330023402 is a wasteful number, since it uses less digits than its factorization.

312403330023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614331.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 312403330023402 its reverse (204320033304213), we get a palindrome (516723363327615).

The spelling of 312403330023402 in words is "three hundred twelve trillion, four hundred three billion, three hundred thirty million, twenty-three thousand, four hundred two".