111320032431 has 8 divisors (see below), whose sum is σ = 148431307264. Its totient is φ = 74211056280.

The previous prime is 111320032429. The next prime is 111320032433. The reversal of 111320032431 is 134230023111.

It is an interprime number because it is at equal distance from previous prime (111320032429) and next prime (111320032433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111320032431 - 2¹ = 111320032429 is a prime.

It is a super-2 number, since 2×111320032431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111320032398 and 111320032407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320032433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458305 + ... + 657786.

It is an arithmetic number, because the mean of its divisors is an integer number (18553913408).

Almost surely, 2^111320032431 is an apocalyptic number.

111320032431 is a deficient number, since it is larger than the sum of its proper divisors (37111274833).

111320032431 is a wasteful number, since it uses less digits than its factorization.

111320032431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149341.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 111320032431 its reverse (134230023111), we get a palindrome (245550055542).

The spelling of 111320032431 in words is "one hundred eleven billion, three hundred twenty million, thirty-two thousand, four hundred thirty-one".