313132123 has 2 divisors, whose sum is σ = 313132124. Its totient is φ = 313132122.

The previous prime is 313132121. The next prime is 313132139. The reversal of 313132123 is 321231313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313132123 - 2¹ = 313132121 is a prime.

Together with 313132121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 313132123.

It is not a weakly prime, because it can be changed into another prime (313132121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156566061 + 156566062.

It is an arithmetic number, because the mean of its divisors is an integer number (156566062).

Almost surely, 2^313132123 is an apocalyptic number.

313132123 is a deficient number, since it is larger than the sum of its proper divisors (1).

313132123 is an equidigital number, since it uses as much as digits as its factorization.

313132123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 19.

The square root of 313132123 is about 17695.5396357387. The cubic root of 313132123 is about 679.0616548611.

Adding to 313132123 its reverse (321231313), we get a palindrome (634363436).

The spelling of 313132123 in words is "three hundred thirteen million, one hundred thirty-two thousand, one hundred twenty-three".