123133877 has 2 divisors, whose sum is σ = 123133878. Its totient is φ = 123133876.

The previous prime is 123133861. The next prime is 123133909. The reversal of 123133877 is 778331321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108701476 + 14432401 = 10426^2 + 3799^2 .

It is an emirp because it is prime and its reverse (778331321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123133877 - 2⁴ = 123133861 is a prime.

It is a super-2 number, since 2×123133877² = 30323903330102258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123133477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61566938 + 61566939.

It is an arithmetic number, because the mean of its divisors is an integer number (61566939).

Almost surely, 2^123133877 is an apocalyptic number.

It is an amenable number.

123133877 is a deficient number, since it is larger than the sum of its proper divisors (1).

123133877 is an equidigital number, since it uses as much as digits as its factorization.

123133877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 123133877 is about 11096.5705062420. The cubic root of 123133877 is about 497.4993503523.

The spelling of 123133877 in words is "one hundred twenty-three million, one hundred thirty-three thousand, eight hundred seventy-seven".