1232531102231 has 32 divisors (see below), whose sum is σ = 1546753900608. Its totient is φ = 964836311040.

The previous prime is 1232531102227. The next prime is 1232531102237. The reversal of 1232531102231 is 1322011352321.

It is not a de Polignac number, because 1232531102231 - 2² = 1232531102227 is a prime.

It is a super-2 number, since 2×1232531102231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1232531102231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232531102237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1968686 + ... + 2518091.

It is an arithmetic number, because the mean of its divisors is an integer number (48336059394).

Almost surely, 2^{1232531102231} is an apocalyptic number.

1232531102231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1232531102231 is a deficient number, since it is larger than the sum of its proper divisors (314222798377).

1232531102231 is a wasteful number, since it uses less digits than its factorization.

1232531102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486931.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 1232531102231 its reverse (1322011352321), we get a palindrome (2554542454552).

The spelling of 1232531102231 in words is "one trillion, two hundred thirty-two billion, five hundred thirty-one million, one hundred two thousand, two hundred thirty-one".