312404042021108 has 6 divisors (see below), whose sum is σ = 546707073536946. Its totient is φ = 156202021010552.

The previous prime is 312404042021101. The next prime is 312404042021153. The reversal of 312404042021108 is 801120240404213.

It can be written as a sum of positive squares in only one way, i.e., 307116792463504 + 5287249557604 = 17524748^2 + 2299402^2 .

It is a super-2 number, since 2×312404042021108² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312404042021101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39050505252635 + ... + 39050505252642.

It is an arithmetic number, because the mean of its divisors is an integer number (91117845589491).

Almost surely, 2^{312404042021108} is an apocalyptic number.

It is an amenable number.

312404042021108 is a deficient number, since it is larger than the sum of its proper divisors (234303031515838).

312404042021108 is a wasteful number, since it uses less digits than its factorization.

312404042021108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78101010505281 (or 78101010505279 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 312404042021108 in words is "three hundred twelve trillion, four hundred four billion, forty-two million, twenty-one thousand, one hundred eight".