123313977 has 6 divisors (see below), whose sum is σ = 178120202. Its totient is φ = 82209312.

The previous prime is 123313973. The next prime is 123313979. The reversal of 123313977 is 779313321.

It can be written as a sum of positive squares in only one way, i.e., 122345721 + 968256 = 11061^2 + 984^2 .

It is not a de Polignac number, because 123313977 - 2² = 123313973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123313973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6850768 + ... + 6850785.

Almost surely, 2^123313977 is an apocalyptic number.

It is an amenable number.

123313977 is a deficient number, since it is larger than the sum of its proper divisors (54806225).

123313977 is a wasteful number, since it uses less digits than its factorization.

123313977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13701559 (or 13701556 counting only the distinct ones).

The product of its digits is 23814, while the sum is 36.

The square root of 123313977 is about 11104.6826609318. The cubic root of 123313977 is about 497.7417856234.

The spelling of 123313977 in words is "one hundred twenty-three million, three hundred thirteen thousand, nine hundred seventy-seven".