2113101009 has 12 divisors (see below), whose sum is σ = 3126702852. Its totient is φ = 1374374400.

The previous prime is 2113100993. The next prime is 2113101047. The reversal of 2113101009 is 9001013112.

It can be written as a sum of positive squares in 2 ways, for example, as 174636225 + 1938464784 = 13215^2 + 44028^2 .

It is not a de Polignac number, because 2113101009 - 2⁴ = 2113100993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2113100982 and 2113101000.

It is not an unprimeable number, because it can be changed into a prime (2113101049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2862912 + ... + 2863649.

It is an arithmetic number, because the mean of its divisors is an integer number (260558571).

Almost surely, 2^2113101009 is an apocalyptic number.

It is an amenable number.

2113101009 is a deficient number, since it is larger than the sum of its proper divisors (1013601843).

2113101009 is a wasteful number, since it uses less digits than its factorization.

2113101009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5726608 (or 5726605 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 2113101009 is about 45968.4784281577. The cubic root of 2113101009 is about 1283.2366430254.

The spelling of 2113101009 in words is "two billion, one hundred thirteen million, one hundred one thousand, nine".