2320215211421 has 2 divisors, whose sum is σ = 2320215211422. Its totient is φ = 2320215211420.

The previous prime is 2320215211403. The next prime is 2320215211471. The reversal of 2320215211421 is 1241125120232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2304172202500 + 16043008921 = 1517950^2 + 126661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2320215211421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320215211471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160107605710 + 1160107605711.

It is an arithmetic number, because the mean of its divisors is an integer number (1160107605711).

Almost surely, 2^{2320215211421} is an apocalyptic number.

It is an amenable number.

2320215211421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320215211421 is an equidigital number, since it uses as much as digits as its factorization.

2320215211421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 2320215211421 in words is "two trillion, three hundred twenty billion, two hundred fifteen million, two hundred eleven thousand, four hundred twenty-one".