312141404031021 has 12 divisors (see below), whose sum is σ = 450904521558972. Its totient is φ = 208078759526976.

The previous prime is 312141404031011. The next prime is 312141404031097. The reversal of 312141404031021 is 120130404141213.

It is a happy number.

312141404031021 is a `hidden beast` number, since 3 + 1 + 2 + 14 + 140 + 403 + 102 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70751145276900 + 241390258754121 = 8411370^2 + 15536739^2 .

It is not a de Polignac number, because 312141404031021 - 2¹³ = 312141404022829 is a prime.

It is a super-2 number, since 2×312141404031021² (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 (312141404031011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1292358126 + ... + 1292599631.

It is an arithmetic number, because the mean of its divisors is an integer number (37575376796581).

Almost surely, 2^{312141404031021} is an apocalyptic number.

It is an amenable number.

312141404031021 is a deficient number, since it is larger than the sum of its proper divisors (138763117527951).

312141404031021 is a wasteful number, since it uses less digits than its factorization.

312141404031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584971180 (or 2584971177 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 312141404031021 its reverse (120130404141213), we get a palindrome (432271808172234).

The spelling of 312141404031021 in words is "three hundred twelve trillion, one hundred forty-one billion, four hundred four million, thirty-one thousand, twenty-one".