111023305020431 has 2 divisors, whose sum is σ = 111023305020432. Its totient is φ = 111023305020430.

The previous prime is 111023305020413. The next prime is 111023305020457. The reversal of 111023305020431 is 134020503320111.

Together with previous prime (111023305020413) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (111023305020457) can be obtained adding 111023305020431 to its sum of digits (26).

It is a weak prime.

It is an emirp because it is prime and its reverse (134020503320111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111023305020431 - 2¹⁸ = 111023304758287 is a prime.

It is a super-2 number, since 2×111023305020431² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111023305020431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111023305020461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511652510215 + 55511652510216.

It is an arithmetic number, because the mean of its divisors is an integer number (55511652510216).

Almost surely, 2^{111023305020431} is an apocalyptic number.

111023305020431 is a deficient number, since it is larger than the sum of its proper divisors (1).

111023305020431 is an equidigital number, since it uses as much as digits as its factorization.

111023305020431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 111023305020431 its reverse (134020503320111), we get a palindrome (245043808340542).

The spelling of 111023305020431 in words is "one hundred eleven trillion, twenty-three billion, three hundred five million, twenty thousand, four hundred thirty-one".