2101100311 has 4 divisors (see below), whose sum is σ = 2101879192. Its totient is φ = 2100321432.

The previous prime is 2101100297. The next prime is 2101100317. The reversal of 2101100311 is 1130011012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101100311 - 2⁵ = 2101100279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101100317) 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, 385380 + ... + 390793.

It is an arithmetic number, because the mean of its divisors is an integer number (525469798).

Almost surely, 2^2101100311 is an apocalyptic number.

2101100311 is a deficient number, since it is larger than the sum of its proper divisors (778881).

2101100311 is an equidigital number, since it uses as much as digits as its factorization.

2101100311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778880.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 2101100311 is about 45837.7607546442. The cubic root of 2101100311 is about 1280.8027823401.

Adding to 2101100311 its reverse (1130011012), we get a palindrome (3231111323).

The spelling of 2101100311 in words is "two billion, one hundred one million, one hundred thousand, three hundred eleven".