22131040433 has 2 divisors, whose sum is σ = 22131040434. Its totient is φ = 22131040432.

The previous prime is 22131040411. The next prime is 22131040439. The reversal of 22131040433 is 33404013122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11769429169 + 10361611264 = 108487^2 + 101792^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131040433 - 2⁶ = 22131040369 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22131040399 and 22131040408.

It is not a weakly prime, because it can be changed into another prime (22131040439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065520216 + 11065520217.

It is an arithmetic number, because the mean of its divisors is an integer number (11065520217).

Almost surely, 2^22131040433 is an apocalyptic number.

It is an amenable number.

22131040433 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131040433 is an equidigital number, since it uses as much as digits as its factorization.

22131040433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22131040433 its reverse (33404013122), we get a palindrome (55535053555).

The spelling of 22131040433 in words is "twenty-two billion, one hundred thirty-one million, forty thousand, four hundred thirty-three".