312400131303 has 24 divisors (see below), whose sum is σ = 451076249088. Its totient is φ = 192230462112.

The previous prime is 312400131289. The next prime is 312400131313. The reversal of 312400131303 is 303131004213.

It is not a de Polignac number, because 312400131303 - 2⁵ = 312400131271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312400131303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312400131313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10382026 + ... + 10412072.

It is an arithmetic number, because the mean of its divisors is an integer number (18794843712).

Almost surely, 2^312400131303 is an apocalyptic number.

312400131303 is a deficient number, since it is larger than the sum of its proper divisors (138676117785).

312400131303 is a wasteful number, since it uses less digits than its factorization.

312400131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50583 (or 50570 counting only the distinct ones).

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

Adding to 312400131303 its reverse (303131004213), we get a palindrome (615531135516).

The spelling of 312400131303 in words is "three hundred twelve billion, four hundred million, one hundred thirty-one thousand, three hundred three".