2100030985 has 64 divisors (see below), whose sum is σ = 2956455936. Its totient is φ = 1419264000.

The previous prime is 2100030973. The next prime is 2100030997. The reversal of 2100030985 is 5890300012.

It is an interprime number because it is at equal distance from previous prime (2100030973) and next prime (2100030997).

It is not a de Polignac number, because 2100030985 - 2⁷ = 2100030857 is a prime.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5236785 + ... + 5237185.

It is an arithmetic number, because the mean of its divisors is an integer number (46194624).

Almost surely, 2^2100030985 is an apocalyptic number.

It is an amenable number.

2100030985 is a deficient number, since it is larger than the sum of its proper divisors (856424951).

2100030985 is a wasteful number, since it uses less digits than its factorization.

2100030985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2100030985 is about 45826.0950223778. The cubic root of 2100030985 is about 1280.5854631701.

Adding to 2100030985 its reverse (5890300012), we get a palindrome (7990330997).

The spelling of 2100030985 in words is "two billion, one hundred million, thirty thousand, nine hundred eighty-five".