11932297801681 has 4 divisors (see below), whose sum is σ = 11932436969892. Its totient is φ = 11932158633472.

The previous prime is 11932297801667. The next prime is 11932297801733. The reversal of 11932297801681 is 18610879223911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5782101160000 + 6150196641681 = 2404600^2 + 2479959^2 .

It is a cyclic number.

It is not a de Polignac number, because 11932297801681 - 2¹⁹ = 11932297277393 is a prime.

It is a super-2 number, since 2×11932297801681² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11932297801601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69455416 + ... + 69627001.

It is an arithmetic number, because the mean of its divisors is an integer number (2983109242473).

Almost surely, 2^{11932297801681} is an apocalyptic number.

It is an amenable number.

11932297801681 is a deficient number, since it is larger than the sum of its proper divisors (139168211).

11932297801681 is an equidigital number, since it uses as much as digits as its factorization.

11932297801681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139168210.

The product of its (nonzero) digits is 2612736, while the sum is 58.

The spelling of 11932297801681 in words is "eleven trillion, nine hundred thirty-two billion, two hundred ninety-seven million, eight hundred one thousand, six hundred eighty-one".