2103982085 has 4 divisors (see below), whose sum is σ = 2524778508. Its totient is φ = 1683185664.

The previous prime is 2103982037. The next prime is 2103982141. The reversal of 2103982085 is 5802893012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1127482084 + 976500001 = 33578^2 + 31249^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103982085 - 2¹² = 2103977989 is a prime.

It is a super-2 number, since 2×2103982085² = 8853481228001894450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210398204 + ... + 210398213.

It is an arithmetic number, because the mean of its divisors is an integer number (631194627).

Almost surely, 2^2103982085 is an apocalyptic number.

It is an amenable number.

2103982085 is a deficient number, since it is larger than the sum of its proper divisors (420796423).

2103982085 is an equidigital number, since it uses as much as digits as its factorization.

2103982085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420796422.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2103982085 is about 45869.1844815231. The cubic root of 2103982085 is about 1281.3880785237.

The spelling of 2103982085 in words is "two billion, one hundred three million, nine hundred eighty-two thousand, eighty-five".