121936667328001 has 4 divisors (see below), whose sum is σ = 121949811313492. Its totient is φ = 121923523342512.

The previous prime is 121936667327953. The next prime is 121936667328017. The reversal of 121936667328001 is 100823766639121.

It is a happy number.

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 110493230003776 + 11443437324225 = 10511576^2 + 3382815^2 .

It is a cyclic number.

It is not a de Polignac number, because 121936667328001 - 2³⁵ = 121902307589633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121936667328101) 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, 6571978830 + ... + 6571997383.

It is an arithmetic number, because the mean of its divisors is an integer number (30487452828373).

Almost surely, 2^{121936667328001} is an apocalyptic number.

It is an amenable number.

121936667328001 is a deficient number, since it is larger than the sum of its proper divisors (13143985491).

121936667328001 is an equidigital number, since it uses as much as digits as its factorization.

121936667328001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13143985490.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 121936667328001 in words is "one hundred twenty-one trillion, nine hundred thirty-six billion, six hundred sixty-seven million, three hundred twenty-eight thousand, one".