123361237 has 2 divisors, whose sum is σ = 123361238. Its totient is φ = 123361236.

The previous prime is 123361223. The next prime is 123361241. The reversal of 123361237 is 732163321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106378596 + 16982641 = 10314^2 + 4121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123361237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123361247) 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 as a sum of consecutive naturals, namely, 61680618 + 61680619.

It is an arithmetic number, because the mean of its divisors is an integer number (61680619).

Almost surely, 2^123361237 is an apocalyptic number.

It is an amenable number.

123361237 is a deficient number, since it is larger than the sum of its proper divisors (1).

123361237 is an equidigital number, since it uses as much as digits as its factorization.

123361237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 123361237 is about 11106.8103882258. The cubic root of 123361237 is about 497.8053639052.

The spelling of 123361237 in words is "one hundred twenty-three million, three hundred sixty-one thousand, two hundred thirty-seven".