22103111309 has 2 divisors, whose sum is σ = 22103111310. Its totient is φ = 22103111308.

The previous prime is 22103111273. The next prime is 22103111339. The reversal of 22103111309 is 90311130122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17848158409 + 4254952900 = 133597^2 + 65230^2 .

It is a cyclic number.

It is not a de Polignac number, because 22103111309 - 2⁸ = 22103111053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22103111339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051555654 + 11051555655.

It is an arithmetic number, because the mean of its divisors is an integer number (11051555655).

Almost surely, 2^22103111309 is an apocalyptic number.

It is an amenable number.

22103111309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22103111309 is an equidigital number, since it uses as much as digits as its factorization.

22103111309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 22103111309 in words is "twenty-two billion, one hundred three million, one hundred eleven thousand, three hundred nine".