2113033021 has 16 divisors (see below), whose sum is σ = 2348766720. Its totient is φ = 1884700720.

The previous prime is 2113032989. The next prime is 2113033049. The reversal of 2113033021 is 1203303112.

It is not a de Polignac number, because 2113033021 - 2⁵ = 2113032989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113032986 and 2113033004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113003021) 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, 362496 + ... + 368278.

It is an arithmetic number, because the mean of its divisors is an integer number (146797920).

Almost surely, 2^2113033021 is an apocalyptic number.

It is an amenable number.

2113033021 is a deficient number, since it is larger than the sum of its proper divisors (235733699).

2113033021 is a wasteful number, since it uses less digits than its factorization.

2113033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6416.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2113033021 is about 45967.7389154611. The cubic root of 2113033021 is about 1283.2228803723. Note that the first 3 decimals are identical.

Adding to 2113033021 its reverse (1203303112), we get a palindrome (3316336133).

The spelling of 2113033021 in words is "two billion, one hundred thirteen million, thirty-three thousand, twenty-one".