1232123479 has 2 divisors, whose sum is σ = 1232123480. Its totient is φ = 1232123478.

The previous prime is 1232123447. The next prime is 1232123483. The reversal of 1232123479 is 9743212321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1232123479 - 2⁵ = 1232123447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232223479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616061739 + 616061740.

It is an arithmetic number, because the mean of its divisors is an integer number (616061740).

Almost surely, 2^1232123479 is an apocalyptic number.

1232123479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232123479 is an equidigital number, since it uses as much as digits as its factorization.

1232123479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 1232123479 is about 35101.6164727495. The cubic root of 1232123479 is about 1072.0574959764.

The spelling of 1232123479 in words is "one billion, two hundred thirty-two million, one hundred twenty-three thousand, four hundred seventy-nine".