1232430131 has 4 divisors (see below), whose sum is σ = 1234940664. Its totient is φ = 1229919600.

The previous prime is 1232430119. The next prime is 1232430163. The reversal of 1232430131 is 1310342321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232430131 is a prime.

It is a super-2 number, since 2×1232430131² = 3037768055593354322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232430631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254530 + ... + 1255511.

It is an arithmetic number, because the mean of its divisors is an integer number (308735166).

Almost surely, 2^1232430131 is an apocalyptic number.

1232430131 is a deficient number, since it is larger than the sum of its proper divisors (2510533).

1232430131 is an equidigital number, since it uses as much as digits as its factorization.

1232430131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510532.

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

The square root of 1232430131 is about 35105.9842619460. The cubic root of 1232430131 is about 1072.1464268104.

Adding to 1232430131 its reverse (1310342321), we get a palindrome (2542772452).

The spelling of 1232430131 in words is "one billion, two hundred thirty-two million, four hundred thirty thousand, one hundred thirty-one".