2321636013 has 10 divisors (see below), whose sum is σ = 3468123054. Its totient is φ = 1547757288.

The previous prime is 2321635993. The next prime is 2321636021. The reversal of 2321636013 is 3106361232.

It is a happy number.

2321636013 is a `hidden beast` number, since 2 + 3 + 21 + 636 + 0 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1899826569 + 421809444 = 43587^2 + 20538^2 .

It is not a de Polignac number, because 2321636013 - 2⁶ = 2321635949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321636033) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14331006 + ... + 14331167.

Almost surely, 2^2321636013 is an apocalyptic number.

It is an amenable number.

2321636013 is a deficient number, since it is larger than the sum of its proper divisors (1146487041).

2321636013 is an equidigital number, since it uses as much as digits as its factorization.

2321636013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28662185 (or 28662176 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 2321636013 is about 48183.3582578052. The cubic root of 2321636013 is about 1324.1322930228.

Adding to 2321636013 its reverse (3106361232), we get a palindrome (5427997245).

The spelling of 2321636013 in words is "two billion, three hundred twenty-one million, six hundred thirty-six thousand, thirteen".