32123131231 has 2 divisors, whose sum is σ = 32123131232. Its totient is φ = 32123131230.

The previous prime is 32123131213. The next prime is 32123131247. The reversal of 32123131231 is 13213132123.

Together with previous prime (32123131213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32123131231 - 2¹⁵ = 32123098463 is a prime.

It is a super-2 number, since 2×32123131231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32123131211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16061565615 + 16061565616.

It is an arithmetic number, because the mean of its divisors is an integer number (16061565616).

Almost surely, 2^32123131231 is an apocalyptic number.

32123131231 is a deficient number, since it is larger than the sum of its proper divisors (1).

32123131231 is an equidigital number, since it uses as much as digits as its factorization.

32123131231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

Adding to 32123131231 its reverse (13213132123), we get a palindrome (45336263354).

The spelling of 32123131231 in words is "thirty-two billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty-one".