22103112431 has 2 divisors, whose sum is σ = 22103112432. Its totient is φ = 22103112430.

The previous prime is 22103112379. The next prime is 22103112491. The reversal of 22103112431 is 13421130122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22103112431 is a prime.

It is a super-2 number, since 2×22103112431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22103112491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051556215 + 11051556216.

It is an arithmetic number, because the mean of its divisors is an integer number (11051556216).

Almost surely, 2^22103112431 is an apocalyptic number.

22103112431 is a deficient number, since it is larger than the sum of its proper divisors (1).

22103112431 is an equidigital number, since it uses as much as digits as its factorization.

22103112431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22103112431 its reverse (13421130122), we get a palindrome (35524242553).

The spelling of 22103112431 in words is "twenty-two billion, one hundred three million, one hundred twelve thousand, four hundred thirty-one".