2103027391 has 4 divisors (see below), whose sum is σ = 2154320784. Its totient is φ = 2051734000.

The previous prime is 2103027389. The next prime is 2103027413. The reversal of 2103027391 is 1937203012.

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

It is a cyclic number.

It is not a de Polignac number, because 2103027391 - 2¹ = 2103027389 is a prime.

It is a super-3 number, since 3×2103027391³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103027371) 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, 25646635 + ... + 25646716.

It is an arithmetic number, because the mean of its divisors is an integer number (538580196).

Almost surely, 2^2103027391 is an apocalyptic number.

2103027391 is a deficient number, since it is larger than the sum of its proper divisors (51293393).

2103027391 is an equidigital number, since it uses as much as digits as its factorization.

2103027391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51293392.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2103027391 is about 45858.7765972883. The cubic root of 2103027391 is about 1281.1942367926.

The spelling of 2103027391 in words is "two billion, one hundred three million, twenty-seven thousand, three hundred ninety-one".