2104523291 has 4 divisors (see below), whose sum is σ = 2266409712. Its totient is φ = 1942636872.

The previous prime is 2104523287. The next prime is 2104523321. The reversal of 2104523291 is 1923254012.

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 2104523291 - 2² = 2104523287 is a prime.

It is a super-2 number, since 2×2104523291² = 8858036564722941362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104523221) 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, 80943191 + ... + 80943216.

It is an arithmetic number, because the mean of its divisors is an integer number (566602428).

Almost surely, 2^2104523291 is an apocalyptic number.

2104523291 is a deficient number, since it is larger than the sum of its proper divisors (161886421).

2104523291 is a wasteful number, since it uses less digits than its factorization.

2104523291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161886420.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2104523291 is about 45875.0835530574. The cubic root of 2104523291 is about 1281.4979393232.

The spelling of 2104523291 in words is "two billion, one hundred four million, five hundred twenty-three thousand, two hundred ninety-one".