2100111403 has 8 divisors (see below), whose sum is σ = 2271124800. Its totient is φ = 1930450368.

The previous prime is 2100111383. The next prime is 2100111407. The reversal of 2100111403 is 3041110012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100111403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100111407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334858 + ... + 341071.

It is an arithmetic number, because the mean of its divisors is an integer number (283890600).

Almost surely, 2^2100111403 is an apocalyptic number.

2100111403 is a deficient number, since it is larger than the sum of its proper divisors (171013397).

2100111403 is a wasteful number, since it uses less digits than its factorization.

2100111403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676181.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2100111403 is about 45826.9724398198. The cubic root of 2100111403 is about 1280.6018090888.

Adding to 2100111403 its reverse (3041110012), we get a palindrome (5141221415).

The spelling of 2100111403 in words is "two billion, one hundred million, one hundred eleven thousand, four hundred three".