2111200131 has 32 divisors (see below), whose sum is σ = 3088473408. Its totient is φ = 1277337600.

The previous prime is 2111200129. The next prime is 2111200159. The reversal of 2111200131 is 1310021112.

It is not a de Polignac number, because 2111200131 - 2¹ = 2111200129 is a prime.

It is a super-2 number, since 2×2111200131² = 8914331986268834322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111200631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208281 + ... + 218181.

It is an arithmetic number, because the mean of its divisors is an integer number (96514794).

Almost surely, 2^2111200131 is an apocalyptic number.

2111200131 is a deficient number, since it is larger than the sum of its proper divisors (977273277).

2111200131 is a wasteful number, since it uses less digits than its factorization.

2111200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10071.

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

The square root of 2111200131 is about 45947.7978906498. The cubic root of 2111200131 is about 1282.8517413902.

Adding to 2111200131 its reverse (1310021112), we get a palindrome (3421221243).

The spelling of 2111200131 in words is "two billion, one hundred eleven million, two hundred thousand, one hundred thirty-one".