1113110291 has 2 divisors, whose sum is σ = 1113110292. Its totient is φ = 1113110290.

The previous prime is 1113110287. The next prime is 1113110303. The reversal of 1113110291 is 1920113111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113110291 - 2² = 1113110287 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113110221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556555145 + 556555146.

It is an arithmetic number, because the mean of its divisors is an integer number (556555146).

Almost surely, 2^1113110291 is an apocalyptic number.

1113110291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113110291 is an equidigital number, since it uses as much as digits as its factorization.

1113110291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 20.

The square root of 1113110291 is about 33363.3075548573. The cubic root of 1113110291 is about 1036.3649881347.

The spelling of 1113110291 in words is "one billion, one hundred thirteen million, one hundred ten thousand, two hundred ninety-one".