21322304034037 has 2 divisors, whose sum is σ = 21322304034038. Its totient is φ = 21322304034036.

The previous prime is 21322304033977. The next prime is 21322304034043. The reversal of 21322304034037 is 73043040322312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15730218905956 + 5592085128081 = 3966134^2 + 2364759^2 .

It is a cyclic number.

It is not a de Polignac number, because 21322304034037 - 2³¹ = 21320156550389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21322304033993 and 21322304034011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21322304034077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661152017018 + 10661152017019.

It is an arithmetic number, because the mean of its divisors is an integer number (10661152017019).

Almost surely, 2^{21322304034037} is an apocalyptic number.

It is an amenable number.

21322304034037 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322304034037 is an equidigital number, since it uses as much as digits as its factorization.

21322304034037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 34.

Adding to 21322304034037 its reverse (73043040322312), we get a palindrome (94365344356349).

The spelling of 21322304034037 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred four million, thirty-four thousand, thirty-seven".