22313455561 has 2 divisors, whose sum is σ = 22313455562. Its totient is φ = 22313455560.

The previous prime is 22313455517. The next prime is 22313455601. The reversal of 22313455561 is 16555431322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12804280336 + 9509175225 = 113156^2 + 97515^2 .

It is a cyclic number.

It is not a de Polignac number, because 22313455561 - 2⁷ = 22313455433 is a prime.

It is a super-3 number, since 3×22313455561³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22313455561.

It is not a weakly prime, because it can be changed into another prime (22313455501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11156727780 + 11156727781.

It is an arithmetic number, because the mean of its divisors is an integer number (11156727781).

Almost surely, 2^22313455561 is an apocalyptic number.

It is an amenable number.

22313455561 is a deficient number, since it is larger than the sum of its proper divisors (1).

22313455561 is an equidigital number, since it uses as much as digits as its factorization.

22313455561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 37.

Adding to 22313455561 its reverse (16555431322), we get a palindrome (38868886883).

The spelling of 22313455561 in words is "twenty-two billion, three hundred thirteen million, four hundred fifty-five thousand, five hundred sixty-one".