312213331234402 has 16 divisors (see below), whose sum is σ = 504528612332472. Its totient is φ = 144045889044480.

The previous prime is 312213331234373. The next prime is 312213331234403. The reversal of 312213331234402 is 204432133312213.

It can be written as a sum of positive squares in 4 ways, for example, as 187917790472721 + 124295540761681 = 13708311^2 + 11148791^2 .

It is not an unprimeable number, because it can be changed into a prime (312213331234403) 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, 2190407583 + ... + 2190550114.

Almost surely, 2^{312213331234402} is an apocalyptic number.

312213331234402 is a deficient number, since it is larger than the sum of its proper divisors (192315281098070).

312213331234402 is a wasteful number, since it uses less digits than its factorization.

312213331234402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380960453.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 312213331234402 its reverse (204432133312213), we get a palindrome (516645464546615).

The spelling of 312213331234402 in words is "three hundred twelve trillion, two hundred thirteen billion, three hundred thirty-one million, two hundred thirty-four thousand, four hundred two".