312404021043 has 16 divisors (see below), whose sum is σ = 438602611200. Its totient is φ = 197244430560.

The previous prime is 312404021009. The next prime is 312404021047. The reversal of 312404021043 is 340120404213.

It is not a de Polignac number, because 312404021043 - 2¹⁷ = 312403889971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312404021047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700828 + ... + 1056393.

It is an arithmetic number, because the mean of its divisors is an integer number (27412663200).

Almost surely, 2^312404021043 is an apocalyptic number.

312404021043 is a deficient number, since it is larger than the sum of its proper divisors (126198590157).

312404021043 is a wasteful number, since it uses less digits than its factorization.

312404021043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760362.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 312404021043 its reverse (340120404213), we get a palindrome (652524425256).

The spelling of 312404021043 in words is "three hundred twelve billion, four hundred four million, twenty-one thousand, forty-three".