313012123 has 4 divisors (see below), whose sum is σ = 313252920. Its totient is φ = 312771328.

The previous prime is 313012097. The next prime is 313012127. The reversal of 313012123 is 321210313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321210313 = 31 ⋅10361623.

It is a cyclic number.

It is not a de Polignac number, because 313012123 - 2²¹ = 310914971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313012097 and 313012106.

It is not an unprimeable number, because it can be changed into a prime (313012127) 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, 118438 + ... + 121051.

It is an arithmetic number, because the mean of its divisors is an integer number (78313230).

Almost surely, 2^313012123 is an apocalyptic number.

313012123 is a deficient number, since it is larger than the sum of its proper divisors (240797).

313012123 is a wasteful number, since it uses less digits than its factorization.

313012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240796.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 313012123 is about 17692.1486258736. The cubic root of 313012123 is about 678.9748993521.

Adding to 313012123 its reverse (321210313), we get a palindrome (634222436).

The spelling of 313012123 in words is "three hundred thirteen million, twelve thousand, one hundred twenty-three".