1110231091 has 4 divisors (see below), whose sum is σ = 1158502032. Its totient is φ = 1061960152.

The previous prime is 1110231043. The next prime is 1110231097. The reversal of 1110231091 is 1901320111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1901320111 = 181 ⋅10504531.

It is a cyclic number.

It is not a de Polignac number, because 1110231091 - 2⁷ = 1110230963 is a prime.

It is a super-2 number, since 2×1110231091² = 2465226150846100562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1110231097) 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, 24135436 + ... + 24135481.

It is an arithmetic number, because the mean of its divisors is an integer number (289625508).

Almost surely, 2^1110231091 is an apocalyptic number.

1110231091 is a deficient number, since it is larger than the sum of its proper divisors (48270941).

1110231091 is an equidigital number, since it uses as much as digits as its factorization.

1110231091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48270940.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1110231091 is about 33320.1304169116. The cubic root of 1110231091 is about 1035.4706537195.

The spelling of 1110231091 in words is "one billion, one hundred ten million, two hundred thirty-one thousand, ninety-one".