2143201113 has 20 divisors (see below), whose sum is σ = 3233283108. Its totient is φ = 1414648800.

The previous prime is 2143201097. The next prime is 2143201127. The reversal of 2143201113 is 3111023412.

It can be written as a sum of positive squares in 2 ways, for example, as 1711725129 + 431475984 = 41373^2 + 20772^2 .

It is not a de Polignac number, because 2143201113 - 2⁴ = 2143201097 is a prime.

It is a super-2 number, since 2×2143201113² = 9186622021528877538, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2143201133) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 122806 + ... + 139167.

Almost surely, 2^2143201113 is an apocalyptic number.

It is an amenable number.

2143201113 is a deficient number, since it is larger than the sum of its proper divisors (1090081995).

2143201113 is a wasteful number, since it uses less digits than its factorization.

2143201113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262086 (or 262077 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2143201113 is about 46294.7201417181. The cubic root of 2143201113 is about 1289.3009679471.

Adding to 2143201113 its reverse (3111023412), we get a palindrome (5254224525).

The spelling of 2143201113 in words is "two billion, one hundred forty-three million, two hundred one thousand, one hundred thirteen".