1232422231 has 4 divisors (see below), whose sum is σ = 1233249192. Its totient is φ = 1231595272.

The previous prime is 1232422153. The next prime is 1232422237. The reversal of 1232422231 is 1322242321.

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

It is a cyclic number.

It is not a de Polignac number, because 1232422231 - 2²¹ = 1230325079 is a prime.

It is a super-2 number, since 2×1232422231² = 3037729110926034722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232422237) 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, 411241 + ... + 414226.

It is an arithmetic number, because the mean of its divisors is an integer number (308312298).

Almost surely, 2^1232422231 is an apocalyptic number.

1232422231 is a deficient number, since it is larger than the sum of its proper divisors (826961).

1232422231 is an equidigital number, since it uses as much as digits as its factorization.

1232422231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826960.

The product of its digits is 1152, while the sum is 22.

The square root of 1232422231 is about 35105.8717453363. The cubic root of 1232422231 is about 1072.1441359504.

Adding to 1232422231 its reverse (1322242321), we get a palindrome (2554664552).

The spelling of 1232422231 in words is "one billion, two hundred thirty-two million, four hundred twenty-two thousand, two hundred thirty-one".