2613233021 has 24 divisors (see below), whose sum is σ = 3161921280. Its totient is φ = 2115169056.

The previous prime is 2613233017. The next prime is 2613233053. The reversal of 2613233021 is 1203323162.

It is not a de Polignac number, because 2613233021 - 2² = 2613233017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2613233011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288071 + ... + 297003.

It is an arithmetic number, because the mean of its divisors is an integer number (131746720).

Almost surely, 2^2613233021 is an apocalyptic number.

It is an amenable number.

2613233021 is a deficient number, since it is larger than the sum of its proper divisors (548688259).

2613233021 is an equidigital number, since it uses as much as digits as its factorization.

2613233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9065 (or 9042 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2613233021 is about 51119.7908935473. The cubic root of 2613233021 is about 1377.3977813550.

Adding to 2613233021 its reverse (1203323162), we get a palindrome (3816556183).

The spelling of 2613233021 in words is "two billion, six hundred thirteen million, two hundred thirty-three thousand, twenty-one".