22531403281 has 2 divisors, whose sum is σ = 22531403282. Its totient is φ = 22531403280.

The previous prime is 22531403263. The next prime is 22531403299. The reversal of 22531403281 is 18230413522.

It is a balanced prime because it is at equal distance from previous prime (22531403263) and next prime (22531403299).

It can be written as a sum of positive squares in only one way, i.e., 21567859600 + 963543681 = 146860^2 + 31041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22531403281 is a prime.

It is a super-2 number, since 2×22531403281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22531403581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11265701640 + 11265701641.

It is an arithmetic number, because the mean of its divisors is an integer number (11265701641).

Almost surely, 2^22531403281 is an apocalyptic number.

It is an amenable number.

22531403281 is a deficient number, since it is larger than the sum of its proper divisors (1).

22531403281 is an equidigital number, since it uses as much as digits as its factorization.

22531403281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 22531403281 in words is "twenty-two billion, five hundred thirty-one million, four hundred three thousand, two hundred eighty-one".