123231523 has 2 divisors, whose sum is σ = 123231524. Its totient is φ = 123231522.

The previous prime is 123231503. The next prime is 123231583. The reversal of 123231523 is 325132321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123231523 - 2⁵ = 123231491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123231494 and 123231503.

It is not a weakly prime, because it can be changed into another prime (123231503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615761 + 61615762.

It is an arithmetic number, because the mean of its divisors is an integer number (61615762).

Almost surely, 2^123231523 is an apocalyptic number.

123231523 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231523 is an equidigital number, since it uses as much as digits as its factorization.

123231523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 123231523 is about 11100.9694621686. The cubic root of 123231523 is about 497.6308223925.

Adding to 123231523 its reverse (325132321), we get a palindrome (448363844).

The spelling of 123231523 in words is "one hundred twenty-three million, two hundred thirty-one thousand, five hundred twenty-three".