2100330123 has 16 divisors (see below), whose sum is σ = 3001180416. Its totient is φ = 1303140960.

The previous prime is 2100330097. The next prime is 2100330173. The reversal of 2100330123 is 3210330012.

It is not a de Polignac number, because 2100330123 - 2¹² = 2100326027 is a prime.

It is a super-2 number, since 2×2100330123² = 8822773251162390258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2100330173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408793 + ... + 413898.

It is an arithmetic number, because the mean of its divisors is an integer number (187573776).

Almost surely, 2^2100330123 is an apocalyptic number.

2100330123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2100330123 is a deficient number, since it is larger than the sum of its proper divisors (900850293).

2100330123 is a wasteful number, since it uses less digits than its factorization.

2100330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822754.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2100330123 is about 45829.3587452410. The cubic root of 2100330123 is about 1280.6462644296.

Adding to 2100330123 its reverse (3210330012), we get a palindrome (5310660135).

The spelling of 2100330123 in words is "two billion, one hundred million, three hundred thirty thousand, one hundred twenty-three".