313031021043 has 16 divisors (see below), whose sum is σ = 473137306880. Its totient is φ = 182495817504.

The previous prime is 313031021033. The next prime is 313031021047. The reversal of 313031021043 is 340120130313.

It is not a de Polignac number, because 313031021043 - 2¹⁶ = 313030955507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313031021047) 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, 211221271 + ... + 211222752.

It is an arithmetic number, because the mean of its divisors is an integer number (29571081680).

Almost surely, 2^313031021043 is an apocalyptic number.

313031021043 is a deficient number, since it is larger than the sum of its proper divisors (160106285837).

313031021043 is a wasteful number, since it uses less digits than its factorization.

313031021043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422444058.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313031021043 its reverse (340120130313), we get a palindrome (653151151356).

The spelling of 313031021043 in words is "three hundred thirteen billion, thirty-one million, twenty-one thousand, forty-three".