2111131200 has 168 divisors, whose sum is σ = 7114064512. Its totient is φ = 547706880.

The previous prime is 2111131159. The next prime is 2111131219. The reversal of 2111131200 is 21311112.

It is a super-2 number, since 2×2111131200² = 8913749887226880000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171657 + ... + 183543.

Almost surely, 2^2111131200 is an apocalyptic number.

2111131200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3557032256).

2111131200 is an abundant number, since it is smaller than the sum of its proper divisors (5002933312).

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

2111131200 is a wasteful number, since it uses less digits than its factorization.

2111131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11949 (or 11934 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2111131200 is about 45947.0477832907. The cubic root of 2111131200 is about 1282.8377794712.

Adding to 2111131200 its reverse (21311112), we get a palindrome (2132442312).

The spelling of 2111131200 in words is "two billion, one hundred eleven million, one hundred thirty-one thousand, two hundred".