1232135423 has 2 divisors, whose sum is σ = 1232135424. Its totient is φ = 1232135422.

The previous prime is 1232135417. The next prime is 1232135431. The reversal of 1232135423 is 3245312321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1232135423 - 2¹⁰ = 1232134399 is a prime.

It is a super-2 number, since 2×1232135423² = 3036315401222777858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1232135392 and 1232135401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232135453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616067711 + 616067712.

It is an arithmetic number, because the mean of its divisors is an integer number (616067712).

Almost surely, 2^1232135423 is an apocalyptic number.

1232135423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232135423 is an equidigital number, since it uses as much as digits as its factorization.

1232135423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 1232135423 is about 35101.7866069521. The cubic root of 1232135423 is about 1072.0609600809.

Adding to 1232135423 its reverse (3245312321), we get a palindrome (4477447744).

The spelling of 1232135423 in words is "one billion, two hundred thirty-two million, one hundred thirty-five thousand, four hundred twenty-three".