32220131231 has 2 divisors, whose sum is σ = 32220131232. Its totient is φ = 32220131230.

The previous prime is 32220131213. The next prime is 32220131291. The reversal of 32220131231 is 13213102223.

Together with previous prime (32220131213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32220131231 - 2¹⁰ = 32220130207 is a prime.

It is a super-2 number, since 2×32220131231² (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 (32220131291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110065615 + 16110065616.

It is an arithmetic number, because the mean of its divisors is an integer number (16110065616).

Almost surely, 2^32220131231 is an apocalyptic number.

32220131231 is a deficient number, since it is larger than the sum of its proper divisors (1).

32220131231 is an equidigital number, since it uses as much as digits as its factorization.

32220131231 is an odious number, because the sum of its binary digits is odd.

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

Adding to 32220131231 its reverse (13213102223), we get a palindrome (45433233454).

The spelling of 32220131231 in words is "thirty-two billion, two hundred twenty million, one hundred thirty-one thousand, two hundred thirty-one".