312011143044402 has 24 divisors (see below), whose sum is σ = 633475063032336. Its totient is φ = 102451420095288.

The previous prime is 312011143044353. The next prime is 312011143044463. The reversal of 312011143044402 is 204440341110213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312011143044402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5792115768 + ... + 5792169635.

It is an arithmetic number, because the mean of its divisors is an integer number (26394794293014).

Almost surely, 2^{312011143044402} is an apocalyptic number.

312011143044402 is an abundant number, since it is smaller than the sum of its proper divisors (321463919987934).

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

312011143044402 is a wasteful number, since it uses less digits than its factorization.

312011143044402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11584285542 (or 11584285475 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 312011143044402 its reverse (204440341110213), we get a palindrome (516451484154615).

The spelling of 312011143044402 in words is "three hundred twelve trillion, eleven billion, one hundred forty-three million, forty-four thousand, four hundred two".