22131051655123 has 2 divisors, whose sum is σ = 22131051655124. Its totient is φ = 22131051655122.

The previous prime is 22131051655109. The next prime is 22131051655147. The reversal of 22131051655123 is 32155615013122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22131051655123 is a prime.

It is not a weakly prime, because it can be changed into another prime (22131051655723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065525827561 + 11065525827562.

It is an arithmetic number, because the mean of its divisors is an integer number (11065525827562).

Almost surely, 2^{22131051655123} is an apocalyptic number.

22131051655123 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131051655123 is an equidigital number, since it uses as much as digits as its factorization.

22131051655123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 37.

Adding to 22131051655123 its reverse (32155615013122), we get a palindrome (54286666668245).

The spelling of 22131051655123 in words is "twenty-two trillion, one hundred thirty-one billion, fifty-one million, six hundred fifty-five thousand, one hundred twenty-three".