312020012155344 has 80 divisors (see below), whose sum is σ = 806682330419328. Its totient is φ = 103925306576896.

The previous prime is 312020012155283. The next prime is 312020012155429. The reversal of 312020012155344 is 443551210020213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1418311084 + ... + 1418531060.

Almost surely, 2^{312020012155344} is an apocalyptic number.

It is an amenable number.

312020012155344 is an abundant number, since it is smaller than the sum of its proper divisors (494662318263984).

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

312020012155344 is a wasteful number, since it uses less digits than its factorization.

312020012155344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242972 (or 242966 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 312020012155344 its reverse (443551210020213), we get a palindrome (755571222175557).

The spelling of 312020012155344 in words is "three hundred twelve trillion, twenty billion, twelve million, one hundred fifty-five thousand, three hundred forty-four".