111334400431 has 4 divisors (see below), whose sum is σ = 111336909264. Its totient is φ = 111331891600.

The previous prime is 111334400417. The next prime is 111334400449. The reversal of 111334400431 is 134004433111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134004433111 = 443 ⋅302493077.

It is a cyclic number.

It is not a de Polignac number, because 111334400431 - 2⁵ = 111334400399 is a prime.

It is a super-2 number, since 2×111334400431² (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 = 111334400396 and 111334400405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111334440431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186630 + ... + 1277011.

It is an arithmetic number, because the mean of its divisors is an integer number (27834227316).

Almost surely, 2^111334400431 is an apocalyptic number.

111334400431 is a deficient number, since it is larger than the sum of its proper divisors (2508833).

111334400431 is an equidigital number, since it uses as much as digits as its factorization.

111334400431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508832.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 111334400431 its reverse (134004433111), we get a palindrome (245338833542).

The spelling of 111334400431 in words is "one hundred eleven billion, three hundred thirty-four million, four hundred thousand, four hundred thirty-one".