1232101231 has 16 divisors (see below), whose sum is σ = 1378003968. Its totient is φ = 1096099200.

The previous prime is 1232101223. The next prime is 1232101253. The reversal of 1232101231 is 1321012321.

It is a cyclic number.

It is not a de Polignac number, because 1232101231 - 2³ = 1232101223 is a prime.

It is a super-2 number, since 2×1232101231² = 3036146886863430722, 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 (1232101271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4525 + ... + 49846.

It is an arithmetic number, because the mean of its divisors is an integer number (86125248).

Almost surely, 2^1232101231 is an apocalyptic number.

1232101231 is a deficient number, since it is larger than the sum of its proper divisors (145902737).

1232101231 is a wasteful number, since it uses less digits than its factorization.

1232101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54462.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1232101231 is about 35101.2995628367. The cubic root of 1232101231 is about 1072.0510433551.

Adding to 1232101231 its reverse (1321012321), we get a palindrome (2553113552).

It can be divided in two parts, 1 and 232101231, that added together give a palindrome (232101232).

The spelling of 1232101231 in words is "one billion, two hundred thirty-two million, one hundred one thousand, two hundred thirty-one".