22303351261 has 2 divisors, whose sum is σ = 22303351262. Its totient is φ = 22303351260.

The previous prime is 22303351247. The next prime is 22303351313. The reversal of 22303351261 is 16215330322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22161979161 + 141372100 = 148869^2 + 11890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22303351261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22303351201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11151675630 + 11151675631.

It is an arithmetic number, because the mean of its divisors is an integer number (11151675631).

Almost surely, 2^22303351261 is an apocalyptic number.

It is an amenable number.

22303351261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22303351261 is an equidigital number, since it uses as much as digits as its factorization.

22303351261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 22303351261 its reverse (16215330322), we get a palindrome (38518681583).

The spelling of 22303351261 in words is "twenty-two billion, three hundred three million, three hundred fifty-one thousand, two hundred sixty-one".