111362205431 has 2 divisors, whose sum is σ = 111362205432. Its totient is φ = 111362205430.

The previous prime is 111362205403. The next prime is 111362205467. The reversal of 111362205431 is 134502263111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111362205431 is a prime.

It is a super-2 number, since 2×111362205431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111362205394 and 111362205403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111362205631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55681102715 + 55681102716.

It is an arithmetic number, because the mean of its divisors is an integer number (55681102716).

Almost surely, 2^111362205431 is an apocalyptic number.

111362205431 is a deficient number, since it is larger than the sum of its proper divisors (1).

111362205431 is an equidigital number, since it uses as much as digits as its factorization.

111362205431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 111362205431 its reverse (134502263111), we get a palindrome (245864468542).

The spelling of 111362205431 in words is "one hundred eleven billion, three hundred sixty-two million, two hundred five thousand, four hundred thirty-one".