123231037 has 2 divisors, whose sum is σ = 123231038. Its totient is φ = 123231036.

The previous prime is 123231019. The next prime is 123231047. The reversal of 123231037 is 730132321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101384761 + 21846276 = 10069^2 + 4674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123231037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123230999 and 123231017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123231047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615518 + 61615519.

It is an arithmetic number, because the mean of its divisors is an integer number (61615519).

Almost surely, 2^123231037 is an apocalyptic number.

It is an amenable number.

123231037 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231037 is an equidigital number, since it uses as much as digits as its factorization.

123231037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 123231037 is about 11100.9475721670. The cubic root of 123231037 is about 497.6301682068.

Adding to 123231037 its reverse (730132321), we get a palindrome (853363358).

The spelling of 123231037 in words is "one hundred twenty-three million, two hundred thirty-one thousand, thirty-seven".