313012143 has 24 divisors (see below), whose sum is σ = 480448800. Its totient is φ = 196372032.

The previous prime is 313012127. The next prime is 313012153. The reversal of 313012143 is 341210313.

It is not a de Polignac number, because 313012143 - 2⁴ = 313012127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313012153) 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, 40678 + ... + 47756.

It is an arithmetic number, because the mean of its divisors is an integer number (20018700).

Almost surely, 2^313012143 is an apocalyptic number.

313012143 is a deficient number, since it is larger than the sum of its proper divisors (167436657).

313012143 is an equidigital number, since it uses as much as digits as its factorization.

313012143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136 (or 7099 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 313012143 is about 17692.1491910960. The cubic root of 313012143 is about 678.9749138132.

Adding to 313012143 its reverse (341210313), we get a palindrome (654222456).

The spelling of 313012143 in words is "three hundred thirteen million, twelve thousand, one hundred forty-three".