22131104431243 has 2 divisors, whose sum is σ = 22131104431244. Its totient is φ = 22131104431242.

The previous prime is 22131104431213. The next prime is 22131104431253. The reversal of 22131104431243 is 34213440113122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22131104431243 - 2³³ = 22122514496651 is a prime.

It is a super-3 number, since 3×22131104431243³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22131104431213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065552215621 + 11065552215622.

It is an arithmetic number, because the mean of its divisors is an integer number (11065552215622).

Almost surely, 2^{22131104431243} is an apocalyptic number.

22131104431243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131104431243 is an equidigital number, since it uses as much as digits as its factorization.

22131104431243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 22131104431243 its reverse (34213440113122), we get a palindrome (56344544544365).

The spelling of 22131104431243 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred four million, four hundred thirty-one thousand, two hundred forty-three".