11620323305 has 4 divisors (see below), whose sum is σ = 13944387972. Its totient is φ = 9296258640.

The previous prime is 11620323289. The next prime is 11620323307. The reversal of 11620323305 is 50332302611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8674873321 + 2945449984 = 93139^2 + 54272^2 .

It is not a de Polignac number, because 11620323305 - 2⁴ = 11620323289 is a prime.

It is a super-2 number, since 2×11620323305² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11620323307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162032326 + ... + 1162032335.

It is an arithmetic number, because the mean of its divisors is an integer number (3486096993).

Almost surely, 2^11620323305 is an apocalyptic number.

It is an amenable number.

11620323305 is a deficient number, since it is larger than the sum of its proper divisors (2324064667).

11620323305 is an equidigital number, since it uses as much as digits as its factorization.

11620323305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324064666.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 11620323305 its reverse (50332302611), we get a palindrome (61952625916).

The spelling of 11620323305 in words is "eleven billion, six hundred twenty million, three hundred twenty-three thousand, three hundred five".