2321002121309 has 8 divisors (see below), whose sum is σ = 2335255813080. Its totient is φ = 2306758056256.

The previous prime is 2321002121237. The next prime is 2321002121351. The reversal of 2321002121309 is 9031212001232.

It can be written as a sum of positive squares in 4 ways, for example, as 1291852740409 + 1029149380900 = 1136597^2 + 1014470^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2321002121309 - 2⁴⁰ = 1221490493533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321002121509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922702 + ... + 2887695.

It is an arithmetic number, because the mean of its divisors is an integer number (291906976635).

Almost surely, 2^{2321002121309} is an apocalyptic number.

It is an amenable number.

2321002121309 is a deficient number, since it is larger than the sum of its proper divisors (14253691771).

2321002121309 is a wasteful number, since it uses less digits than its factorization.

2321002121309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813359.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 2321002121309 in words is "two trillion, three hundred twenty-one billion, two million, one hundred twenty-one thousand, three hundred nine".