21422233143431 has 2 divisors, whose sum is σ = 21422233143432. Its totient is φ = 21422233143430.

The previous prime is 21422233143413. The next prime is 21422233143481. The reversal of 21422233143431 is 13434133222412.

It is a happy number.

Together with previous prime (21422233143413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21422233143431 - 2¹⁴ = 21422233127047 is a prime.

It is a super-2 number, since 2×21422233143431² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 21422233143391 and 21422233143400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21422233143401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10711116571715 + 10711116571716.

It is an arithmetic number, because the mean of its divisors is an integer number (10711116571716).

Almost surely, 2^{21422233143431} is an apocalyptic number.

21422233143431 is a deficient number, since it is larger than the sum of its proper divisors (1).

21422233143431 is an equidigital number, since it uses as much as digits as its factorization.

21422233143431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 35.

Adding to 21422233143431 its reverse (13434133222412), we get a palindrome (34856366365843).

The spelling of 21422233143431 in words is "twenty-one trillion, four hundred twenty-two billion, two hundred thirty-three million, one hundred forty-three thousand, four hundred thirty-one".