312402552442 has 16 divisors (see below), whose sum is σ = 474362032032. Its totient is φ = 154282767120.

The previous prime is 312402552401. The next prime is 312402552443. The reversal of 312402552442 is 244255204213.

It is a junction number, because it is equal to n+sod(n) for n = 312402552398 and 312402552407.

It is not an unprimeable number, because it can be changed into a prime (312402552443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486493 + ... + 928159.

It is an arithmetic number, because the mean of its divisors is an integer number (29647627002).

Almost surely, 2^312402552442 is an apocalyptic number.

312402552442 is a deficient number, since it is larger than the sum of its proper divisors (161959479590).

312402552442 is a wasteful number, since it uses less digits than its factorization.

312402552442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446013.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 312402552442 its reverse (244255204213), we get a palindrome (556657756655).

The spelling of 312402552442 in words is "three hundred twelve billion, four hundred two million, five hundred fifty-two thousand, four hundred forty-two".