111412431 has 24 divisors (see below), whose sum is σ = 174168176. Its totient is φ = 68221440.

The previous prime is 111412429. The next prime is 111412459. The reversal of 111412431 is 134214111.

It is not a de Polignac number, because 111412431 - 2¹ = 111412429 is a prime.

It is a super-2 number, since 2×111412431² = 24825459562659522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111412421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22431 + ... + 26943.

Almost surely, 2^111412431 is an apocalyptic number.

111412431 is a deficient number, since it is larger than the sum of its proper divisors (62755745).

111412431 is a wasteful number, since it uses less digits than its factorization.

111412431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743 (or 4740 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 111412431 is about 10555.2087141847. The cubic root of 111412431 is about 481.1840429988.

Adding to 111412431 its reverse (134214111), we get a palindrome (245626542).

The spelling of 111412431 in words is "one hundred eleven million, four hundred twelve thousand, four hundred thirty-one".