312404042021140 has 12 divisors (see below), whose sum is σ = 656048488244436. Its totient is φ = 124961616808448.

The previous prime is 312404042021101. The next prime is 312404042021153. The reversal of 312404042021140 is 41120240404213.

It can be written as a sum of positive squares in 2 ways, for example, as 128762624359044 + 183641417662096 = 11347362^2 + 13551436^2 .

It is a super-2 number, since 2×312404042021140² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312404042021099 and 312404042021108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7810101050509 + ... + 7810101050548.

It is an arithmetic number, because the mean of its divisors is an integer number (54670707353703).

Almost surely, 2^{312404042021140} is an apocalyptic number.

It is an amenable number.

312404042021140 is an abundant number, since it is smaller than the sum of its proper divisors (343644446223296).

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

312404042021140 is a wasteful number, since it uses less digits than its factorization.

312404042021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15620202101066 (or 15620202101064 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 312404042021140 its reverse (41120240404213), we get a palindrome (353524282425353).

The spelling of 312404042021140 in words is "three hundred twelve trillion, four hundred four billion, forty-two million, twenty-one thousand, one hundred forty".