32131112013181 has 2 divisors, whose sum is σ = 32131112013182. Its totient is φ = 32131112013180.

The previous prime is 32131112013179. The next prime is 32131112013211. The reversal of 32131112013181 is 18131021113123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26409012660900 + 5722099352281 = 5138970^2 + 2392091^2 .

It is an emirp because it is prime and its reverse (18131021113123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32131112013181 - 2¹ = 32131112013179 is a prime.

It is a super-2 number, since 2×32131112013181² (a number of 28 digits) contains 22 as substring.

Together with 32131112013179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32131112011181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16065556006590 + 16065556006591.

It is an arithmetic number, because the mean of its divisors is an integer number (16065556006591).

Almost surely, 2^{32131112013181} is an apocalyptic number.

It is an amenable number.

32131112013181 is a deficient number, since it is larger than the sum of its proper divisors (1).

32131112013181 is an equidigital number, since it uses as much as digits as its factorization.

32131112013181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 32131112013181 in words is "thirty-two trillion, one hundred thirty-one billion, one hundred twelve million, thirteen thousand, one hundred eighty-one".