22431000133 has 2 divisors, whose sum is σ = 22431000134. Its totient is φ = 22431000132.

The previous prime is 22431000121. The next prime is 22431000143. The reversal of 22431000133 is 33100013422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21332939364 + 1098060769 = 146058^2 + 33137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22431000133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22431000133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22431000143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11215500066 + 11215500067.

It is an arithmetic number, because the mean of its divisors is an integer number (11215500067).

Almost surely, 2^22431000133 is an apocalyptic number.

It is an amenable number.

22431000133 is a deficient number, since it is larger than the sum of its proper divisors (1).

22431000133 is an equidigital number, since it uses as much as digits as its factorization.

22431000133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22431000133 its reverse (33100013422), we get a palindrome (55531013555).

The spelling of 22431000133 in words is "twenty-two billion, four hundred thirty-one million, one hundred thirty-three", and thus it is an aban number.