1321922763001 has 3 divisors (see below), whose sum is σ = 1321923912751. Its totient is φ = 1321921613252.

The previous prime is 1321922762999. The next prime is 1321922763019. The reversal of 1321922763001 is 1003672291231.

The square root of 1321922763001 is 1149749.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 535898666601 + 786024096400 = 732051^2 + 886580^2 .

It is not a de Polignac number, because 1321922763001 - 2¹ = 1321922762999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321922767001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 574875 + ... + 1724623.

Almost surely, 2^{1321922763001} is an apocalyptic number.

1321922763001 is the 1149749-th square number.

1321922763001 is the 574875-th centered octagonal number.

It is an amenable number.

1321922763001 is a deficient number, since it is larger than the sum of its proper divisors (1149750).

1321922763001 is an frugal number, since it uses more digits than its factorization.

1321922763001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299498 (or 1149749 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 1321922763001 in words is "one trillion, three hundred twenty-one billion, nine hundred twenty-two million, seven hundred sixty-three thousand, one".