312115213304 has 8 divisors (see below), whose sum is σ = 585216024960. Its totient is φ = 156057606648.

The previous prime is 312115213283. The next prime is 312115213307. The reversal of 312115213304 is 403312511213.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312115213307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19507200824 + ... + 19507200839.

It is an arithmetic number, because the mean of its divisors is an integer number (73152003120).

Almost surely, 2^312115213304 is an apocalyptic number.

It is an amenable number.

312115213304 is a deficient number, since it is larger than the sum of its proper divisors (273100811656).

312115213304 is a wasteful number, since it uses less digits than its factorization.

312115213304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39014401669 (or 39014401665 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 312115213304 its reverse (403312511213), we get a palindrome (715427724517).

The spelling of 312115213304 in words is "three hundred twelve billion, one hundred fifteen million, two hundred thirteen thousand, three hundred four".