2113333021 has 8 divisors (see below), whose sum is σ = 2120168960. Its totient is φ = 2106509328.

The previous prime is 2113333009. The next prime is 2113333039. The reversal of 2113333021 is 1203333112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113333021 - 2²¹ = 2111235869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113333021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113333421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438895 + ... + 443683.

It is an arithmetic number, because the mean of its divisors is an integer number (265021120).

Almost surely, 2^2113333021 is an apocalyptic number.

It is an amenable number.

2113333021 is a deficient number, since it is larger than the sum of its proper divisors (6835939).

2113333021 is an equidigital number, since it uses as much as digits as its factorization.

2113333021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6123.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2113333021 is about 45971.0019577559. The cubic root of 2113333021 is about 1283.2836064538.

Adding to 2113333021 its reverse (1203333112), we get a palindrome (3316666133).

Subtracting from 2113333021 its reverse (1203333112), we obtain a palindrome (909999909).

The spelling of 2113333021 in words is "two billion, one hundred thirteen million, three hundred thirty-three thousand, twenty-one".