22431520535441 has 2 divisors, whose sum is σ = 22431520535442. Its totient is φ = 22431520535440.

The previous prime is 22431520535383. The next prime is 22431520535447. The reversal of 22431520535441 is 14453502513422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17498994912400 + 4932525623041 = 4183180^2 + 2220929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22431520535441 is a prime.

It is a super-2 number, since 2×22431520535441² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22431520535447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11215760267720 + 11215760267721.

It is an arithmetic number, because the mean of its divisors is an integer number (11215760267721).

Almost surely, 2^{22431520535441} is an apocalyptic number.

It is an amenable number.

22431520535441 is a deficient number, since it is larger than the sum of its proper divisors (1).

22431520535441 is an equidigital number, since it uses as much as digits as its factorization.

22431520535441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 22431520535441 in words is "twenty-two trillion, four hundred thirty-one billion, five hundred twenty million, five hundred thirty-five thousand, four hundred forty-one".