313112143 has 4 divisors (see below), whose sum is σ = 313713648. Its totient is φ = 312510640.

The previous prime is 313112131. The next prime is 313112147. The reversal of 313112143 is 341211313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341211313 = 4651 ⋅73363.

It is a cyclic number.

It is not a de Polignac number, because 313112143 - 2¹³ = 313103951 is a prime.

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 313112143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313112147) 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, 299971 + ... + 301012.

It is an arithmetic number, because the mean of its divisors is an integer number (78428412).

Almost surely, 2^313112143 is an apocalyptic number.

313112143 is a deficient number, since it is larger than the sum of its proper divisors (601505).

313112143 is an equidigital number, since it uses as much as digits as its factorization.

313112143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601504.

The product of its digits is 216, while the sum is 19.

The square root of 313112143 is about 17694.9750776880. The cubic root of 313112143 is about 679.0472116070.

Adding to 313112143 its reverse (341211313), we get a palindrome (654323456).

The spelling of 313112143 in words is "three hundred thirteen million, one hundred twelve thousand, one hundred forty-three".