123347057 has 2 divisors, whose sum is σ = 123347058. Its totient is φ = 123347056.

The previous prime is 123347051. The next prime is 123347083. The reversal of 123347057 is 750743321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63377521 + 59969536 = 7961^2 + 7744^2 .

It is a cyclic number.

It is not a de Polignac number, because 123347057 - 2⁸ = 123346801 is a prime.

It is a super-2 number, since 2×123347057² = 30428992941122498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123347051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61673528 + 61673529.

It is an arithmetic number, because the mean of its divisors is an integer number (61673529).

Almost surely, 2^123347057 is an apocalyptic number.

It is an amenable number.

123347057 is a deficient number, since it is larger than the sum of its proper divisors (1).

123347057 is an equidigital number, since it uses as much as digits as its factorization.

123347057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 123347057 is about 11106.1720227989. The cubic root of 123347057 is about 497.7862894355.

It can be divided in two parts, 12334 and 7057, that added together give a palindrome (19391).

The spelling of 123347057 in words is "one hundred twenty-three million, three hundred forty-seven thousand, fifty-seven".