4121998113 has 4 divisors (see below), whose sum is σ = 5495997488. Its totient is φ = 2747998740.

The previous prime is 4121998091. The next prime is 4121998117. The reversal of 4121998113 is 3118991214.

4121998113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4121998113 - 2¹⁷ = 4121867041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4121998117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686999683 + ... + 686999688.

It is an arithmetic number, because the mean of its divisors is an integer number (1373999372).

Almost surely, 2^4121998113 is an apocalyptic number.

It is an amenable number.

4121998113 is a deficient number, since it is larger than the sum of its proper divisors (1373999375).

4121998113 is a wasteful number, since it uses less digits than its factorization.

4121998113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373999374.

The product of its digits is 15552, while the sum is 39.

The square root of 4121998113 is about 64202.7889814765. The cubic root of 4121998113 is about 1603.3780339983.

The spelling of 4121998113 in words is "four billion, one hundred twenty-one million, nine hundred ninety-eight thousand, one hundred thirteen".