313146351431 has 4 divisors (see below), whose sum is σ = 317436027552. Its totient is φ = 308856675312.

The previous prime is 313146351407. The next prime is 313146351437. The reversal of 313146351431 is 134153641313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134153641313 = 2239 ⋅59916767.

It is a cyclic number.

It is not a de Polignac number, because 313146351431 - 2²² = 313142157127 is a prime.

It is a super-2 number, since 2×313146351431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313146351391 and 313146351400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313146351437) 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, 2144837951 + ... + 2144838096.

It is an arithmetic number, because the mean of its divisors is an integer number (79359006888).

Almost surely, 2^313146351431 is an apocalyptic number.

313146351431 is a deficient number, since it is larger than the sum of its proper divisors (4289676121).

313146351431 is an equidigital number, since it uses as much as digits as its factorization.

313146351431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289676120.

The product of its digits is 38880, while the sum is 35.

Adding to 313146351431 its reverse (134153641313), we get a palindrome (447299992744).

The spelling of 313146351431 in words is "three hundred thirteen billion, one hundred forty-six million, three hundred fifty-one thousand, four hundred thirty-one".