2303323012621 has 2 divisors, whose sum is σ = 2303323012622. Its totient is φ = 2303323012620.

The previous prime is 2303323012619. The next prime is 2303323012631. The reversal of 2303323012621 is 1262103233032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1252720562500 + 1050602450121 = 1119250^2 + 1024989^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303323012621 - 2¹ = 2303323012619 is a prime.

Together with 2303323012619, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2303323012621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2303323012631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151661506310 + 1151661506311.

It is an arithmetic number, because the mean of its divisors is an integer number (1151661506311).

Almost surely, 2^{2303323012621} is an apocalyptic number.

It is an amenable number.

2303323012621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303323012621 is an equidigital number, since it uses as much as digits as its factorization.

2303323012621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 2303323012621 its reverse (1262103233032), we get a palindrome (3565426245653).

The spelling of 2303323012621 in words is "two trillion, three hundred three billion, three hundred twenty-three million, twelve thousand, six hundred twenty-one".