313123442 has 16 divisors (see below), whose sum is σ = 498016512. Its totient is φ = 147144000.

The previous prime is 313123441. The next prime is 313123451. The reversal of 313123442 is 244321313.

It is not an unprimeable number, because it can be changed into a prime (313123441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19403 + ... + 31665.

It is an arithmetic number, because the mean of its divisors is an integer number (31126032).

Almost surely, 2^313123442 is an apocalyptic number.

313123442 is a deficient number, since it is larger than the sum of its proper divisors (184893070).

313123442 is a wasteful number, since it uses less digits than its factorization.

313123442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13033.

The product of its digits is 1728, while the sum is 23.

The square root of 313123442 is about 17695.2943462379. The cubic root of 313123442 is about 679.0553795668.

Adding to 313123442 its reverse (244321313), we get a palindrome (557444755).

The spelling of 313123442 in words is "three hundred thirteen million, one hundred twenty-three thousand, four hundred forty-two".