110891431 has 16 divisors (see below), whose sum is σ = 129126400. Its totient is φ = 93270528.

The previous prime is 110891401. The next prime is 110891449. The reversal of 110891431 is 134198011.

It is a cyclic number.

It is not a de Polignac number, because 110891431 - 2⁵ = 110891399 is a prime.

It is a super-2 number, since 2×110891431² = 24593818938455522, which contains 22 as substring.

It is the 10531-st Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110891431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110891401) by changing a digit.

It is a nontrivial repunit in base 10530.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106210 + ... + 107248.

It is an arithmetic number, because the mean of its divisors is an integer number (8070400).

Almost surely, 2^110891431 is an apocalyptic number.

110891431 is a deficient number, since it is larger than the sum of its proper divisors (18234969).

110891431 is a wasteful number, since it uses less digits than its factorization.

110891431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 110891431 is about 10530.5000356108. The cubic root of 110891431 is about 480.4328141875.

The spelling of 110891431 in words is "one hundred ten million, eight hundred ninety-one thousand, four hundred thirty-one".