2123986113 has 6 divisors (see below), whose sum is σ = 3067979954. Its totient is φ = 1415990736.

The previous prime is 2123986091. The next prime is 2123986121. The reversal of 2123986113 is 3116893212.

2123986113 is a `hidden beast` number, since 2 + 1 + 2 + 39 + 8 + 611 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1669784769 + 454201344 = 40863^2 + 21312^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2123986113 is a prime.

It is a super-2 number, since 2×2123986113² = 9022634016433697538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123986133) 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 5 ways as a sum of consecutive naturals, for example, 117999220 + ... + 117999237.

Almost surely, 2^2123986113 is an apocalyptic number.

It is an amenable number.

2123986113 is a deficient number, since it is larger than the sum of its proper divisors (943993841).

2123986113 is a wasteful number, since it uses less digits than its factorization.

2123986113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235998463 (or 235998460 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 2123986113 is about 46086.7238258482. The cubic root of 2123986113 is about 1285.4362930776.

The spelling of 2123986113 in words is "two billion, one hundred twenty-three million, nine hundred eighty-six thousand, one hundred thirteen".