312001140400002 has 48 divisors (see below), whose sum is σ = 686439805746240. Its totient is φ = 102396209816736.

The previous prime is 312001140399941. The next prime is 312001140400009. The reversal of 312001140400002 is 200004041100213.

312001140400002 is a `hidden beast` number, since 3 + 120 + 0 + 1 + 140 + 400 + 0 + 0 + 2 = 666.

It is a super-2 number, since 2×312001140400002² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (312001140400009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63182502 + ... + 67941377.

It is an arithmetic number, because the mean of its divisors is an integer number (14300829286380).

Almost surely, 2^{312001140400002} is an apocalyptic number.

312001140400002 is an abundant number, since it is smaller than the sum of its proper divisors (374438665346238).

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

312001140400002 is a wasteful number, since it uses less digits than its factorization.

312001140400002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131125927 (or 131125924 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 312001140400002 its reverse (200004041100213), we get a palindrome (512005181500215).

The spelling of 312001140400002 in words is "three hundred twelve trillion, one billion, one hundred forty million, four hundred thousand, two".