32111213231 has 2 divisors, whose sum is σ = 32111213232. Its totient is φ = 32111213230.

The previous prime is 32111213227. The next prime is 32111213257. The reversal of 32111213231 is 13231211123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32111213231 - 2² = 32111213227 is a prime.

It is a super-2 number, since 2×32111213231² (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 (32111213291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16055606615 + 16055606616.

It is an arithmetic number, because the mean of its divisors is an integer number (16055606616).

Almost surely, 2^32111213231 is an apocalyptic number.

32111213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

32111213231 is an equidigital number, since it uses as much as digits as its factorization.

32111213231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

Adding to 32111213231 its reverse (13231211123), we get a palindrome (45342424354).

The spelling of 32111213231 in words is "thirty-two billion, one hundred eleven million, two hundred thirteen thousand, two hundred thirty-one".