2103921073 has 4 divisors (see below), whose sum is σ = 2104321648. Its totient is φ = 2103520500.

The previous prime is 2103921059. The next prime is 2103921089. The reversal of 2103921073 is 3701293012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2103921073 - 2²¹ = 2101823921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103921373) 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, 192303 + ... + 202948.

It is an arithmetic number, because the mean of its divisors is an integer number (526080412).

Almost surely, 2^2103921073 is an apocalyptic number.

It is an amenable number.

2103921073 is a deficient number, since it is larger than the sum of its proper divisors (400575).

2103921073 is an equidigital number, since it uses as much as digits as its factorization.

2103921073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400574.

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

The square root of 2103921073 is about 45868.5194114656. The cubic root of 2103921073 is about 1281.3756923591.

The spelling of 2103921073 in words is "two billion, one hundred three million, nine hundred twenty-one thousand, seventy-three".