323120112112081 has 2 divisors, whose sum is σ = 323120112112082. Its totient is φ = 323120112112080.

The previous prime is 323120112112013. The next prime is 323120112112199. The reversal of 323120112112081 is 180211211021323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264441585955600 + 58678526156481 = 16261660^2 + 7660191^2 .

It is a cyclic number.

It is not a de Polignac number, because 323120112112081 - 2⁴⁵ = 287935740023249 is a prime.

It is a super-2 number, since 2×323120112112081² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (323120112112481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161560056056040 + 161560056056041.

It is an arithmetic number, because the mean of its divisors is an integer number (161560056056041).

Almost surely, 2^{323120112112081} is an apocalyptic number.

It is an amenable number.

323120112112081 is a deficient number, since it is larger than the sum of its proper divisors (1).

323120112112081 is an equidigital number, since it uses as much as digits as its factorization.

323120112112081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 323120112112081 in words is "three hundred twenty-three trillion, one hundred twenty billion, one hundred twelve million, one hundred twelve thousand, eighty-one".