123315037 has 2 divisors, whose sum is σ = 123315038. Its totient is φ = 123315036.

The previous prime is 123315011. The next prime is 123315053. The reversal of 123315037 is 730513321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114618436 + 8696601 = 10706^2 + 2949^2 .

It is an emirp because it is prime and its reverse (730513321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123315037 - 2⁷ = 123314909 is a prime.

It is a super-2 number, since 2×123315037² = 30413196700622738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123315007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61657518 + 61657519.

It is an arithmetic number, because the mean of its divisors is an integer number (61657519).

Almost surely, 2^123315037 is an apocalyptic number.

It is an amenable number.

123315037 is a deficient number, since it is larger than the sum of its proper divisors (1).

123315037 is an equidigital number, since it uses as much as digits as its factorization.

123315037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 123315037 is about 11104.7303884426. The cubic root of 123315037 is about 497.7432118061.

Adding to 123315037 its reverse (730513321), we get a palindrome (853828358).

The spelling of 123315037 in words is "one hundred twenty-three million, three hundred fifteen thousand, thirty-seven".