313105430253531 has 4 divisors (see below), whose sum is σ = 417473907004712. Its totient is φ = 208736953502352.

The previous prime is 313105430253493. The next prime is 313105430253547. The reversal of 313105430253531 is 135352034501313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 313105430253531 - 2⁶ = 313105430253467 is a prime.

It is a super-2 number, since 2×313105430253531² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313105430253531.

It is not an unprimeable number, because it can be changed into a prime (313105430253571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52184238375586 + ... + 52184238375591.

It is an arithmetic number, because the mean of its divisors is an integer number (104368476751178).

Almost surely, 2^{313105430253531} is an apocalyptic number.

313105430253531 is a deficient number, since it is larger than the sum of its proper divisors (104368476751181).

313105430253531 is a wasteful number, since it uses less digits than its factorization.

313105430253531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104368476751180.

The product of its (nonzero) digits is 243000, while the sum is 39.

Adding to 313105430253531 its reverse (135352034501313), we get a palindrome (448457464754844).

The spelling of 313105430253531 in words is "three hundred thirteen trillion, one hundred five billion, four hundred thirty million, two hundred fifty-three thousand, five hundred thirty-one".