123234131 has 2 divisors, whose sum is σ = 123234132. Its totient is φ = 123234130.

The previous prime is 123234127. The next prime is 123234149. The reversal of 123234131 is 131432321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123234131 - 2² = 123234127 is a prime.

It is a super-2 number, since 2×123234131² = 30373302086650322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (123234101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61617065 + 61617066.

It is an arithmetic number, because the mean of its divisors is an integer number (61617066).

Almost surely, 2^123234131 is an apocalyptic number.

123234131 is a deficient number, since it is larger than the sum of its proper divisors (1).

123234131 is an equidigital number, since it uses as much as digits as its factorization.

123234131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 123234131 is about 11101.0869287651. The cubic root of 123234131 is about 497.6343328905.

Adding to 123234131 its reverse (131432321), we get a palindrome (254666452).

The spelling of 123234131 in words is "one hundred twenty-three million, two hundred thirty-four thousand, one hundred thirty-one".