2301133891 has 4 divisors (see below), whose sum is σ = 2629867312. Its totient is φ = 1972400472.

The previous prime is 2301133867. The next prime is 2301133903. The reversal of 2301133891 is 1983311032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2301133891 - 2¹⁵ = 2301101123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2301133801) 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, 164366700 + ... + 164366713.

It is an arithmetic number, because the mean of its divisors is an integer number (657466828).

Almost surely, 2^2301133891 is an apocalyptic number.

2301133891 is a deficient number, since it is larger than the sum of its proper divisors (328733421).

2301133891 is an equidigital number, since it uses as much as digits as its factorization.

2301133891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328733420.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2301133891 is about 47970.1354073553. The cubic root of 2301133891 is about 1320.2230054432.

The spelling of 2301133891 in words is "two billion, three hundred one million, one hundred thirty-three thousand, eight hundred ninety-one".