312112511420 has 24 divisors (see below), whose sum is σ = 658729932000. Its totient is φ = 124217641152.

The previous prime is 312112511419. The next prime is 312112511441. The reversal of 312112511420 is 24115211213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39206135 + ... + 39214094.

It is an arithmetic number, because the mean of its divisors is an integer number (27447080500).

Almost surely, 2^312112511420 is an apocalyptic number.

It is an amenable number.

312112511420 is an abundant number, since it is smaller than the sum of its proper divisors (346617420580).

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

312112511420 is a wasteful number, since it uses less digits than its factorization.

312112511420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78420437 (or 78420435 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 312112511420 its reverse (24115211213), we get a palindrome (336227722633).

The spelling of 312112511420 in words is "three hundred twelve billion, one hundred twelve million, five hundred eleven thousand, four hundred twenty".