2101111896 has 64 divisors (see below), whose sum is σ = 5809759200. Its totient is φ = 629019648.

The previous prime is 2101111879. The next prime is 2101111897. The reversal of 2101111896 is 6981111012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101111897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79461 + ... + 102548.

Almost surely, 2^2101111896 is an apocalyptic number.

2101111896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2101111896 is an abundant number, since it is smaller than the sum of its proper divisors (3708647304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101111896 is a wasteful number, since it uses less digits than its factorization.

2101111896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182068 (or 182064 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 30.

The square root of 2101111896 is about 45837.8871240811. The cubic root of 2101111896 is about 1280.8051363564.

The spelling of 2101111896 in words is "two billion, one hundred one million, one hundred eleven thousand, eight hundred ninety-six".