123388077 has 16 divisors (see below), whose sum is σ = 172149120. Its totient is φ = 78462912.

The previous prime is 123388073. The next prime is 123388093. The reversal of 123388077 is 770883321.

It is not a de Polignac number, because 123388077 - 2² = 123388073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123388073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24543 + ... + 29139.

It is an arithmetic number, because the mean of its divisors is an integer number (10759320).

Almost surely, 2^123388077 is an apocalyptic number.

It is an amenable number.

123388077 is a deficient number, since it is larger than the sum of its proper divisors (48761043).

123388077 is a wasteful number, since it uses less digits than its factorization.

123388077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 123388077 is about 11108.0185901897. The cubic root of 123388077 is about 497.8414641893.

The spelling of 123388077 in words is "one hundred twenty-three million, three hundred eighty-eight thousand, seventy-seven".