2101200231 has 16 divisors (see below), whose sum is σ = 3018191456. Its totient is φ = 1292582016.

The previous prime is 2101200197. The next prime is 2101200319. The reversal of 2101200231 is 1320021012.

It is not a de Polignac number, because 2101200231 - 2¹³ = 2101192039 is a prime.

It is a super-2 number, since 2×2101200231² = 8830084821508906722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101200931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123561 + ... + 139533.

It is an arithmetic number, because the mean of its divisors is an integer number (188636966).

Almost surely, 2^2101200231 is an apocalyptic number.

2101200231 is a deficient number, since it is larger than the sum of its proper divisors (916991225).

2101200231 is a wasteful number, since it uses less digits than its factorization.

2101200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19362.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2101200231 is about 45838.8506727645. The cubic root of 2101200231 is about 1280.8230853190.

Adding to 2101200231 its reverse (1320021012), we get a palindrome (3421221243).

The spelling of 2101200231 in words is "two billion, one hundred one million, two hundred thousand, two hundred thirty-one".