88111431 has 6 divisors (see below), whose sum is σ = 127272080. Its totient is φ = 58740948.

The previous prime is 88111421. The next prime is 88111447. The reversal of 88111431 is 13411188.

It is not a de Polignac number, because 88111431 - 2⁵ = 88111399 is a prime.

It is a super-2 number, since 2×88111431² = 15527248545735522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88111395 and 88111404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88111421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4895071 + ... + 4895088.

Almost surely, 2^88111431 is an apocalyptic number.

88111431 is a deficient number, since it is larger than the sum of its proper divisors (39160649).

88111431 is a wasteful number, since it uses less digits than its factorization.

88111431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9790165 (or 9790162 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 88111431 is about 9386.7689329183. The cubic root of 88111431 is about 444.9836815966.

The spelling of 88111431 in words is "eighty-eight million, one hundred eleven thousand, four hundred thirty-one".