11620323331 has 4 divisors (see below), whose sum is σ = 11620731832. Its totient is φ = 11619914832.

The previous prime is 11620323329. The next prime is 11620323349. The reversal of 11620323331 is 13332302611.

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

It is a cyclic number.

It is not a de Polignac number, because 11620323331 - 2¹ = 11620323329 is a prime.

It is a super-2 number, since 2×11620323331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11620323296 and 11620323305.

It is not an unprimeable number, because it can be changed into a prime (11620323391) 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, 158106 + ... + 219631.

It is an arithmetic number, because the mean of its divisors is an integer number (2905182958).

Almost surely, 2^11620323331 is an apocalyptic number.

11620323331 is a deficient number, since it is larger than the sum of its proper divisors (408501).

11620323331 is an equidigital number, since it uses as much as digits as its factorization.

11620323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408500.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 11620323331 its reverse (13332302611), we get a palindrome (24952625942).

The spelling of 11620323331 in words is "eleven billion, six hundred twenty million, three hundred twenty-three thousand, three hundred thirty-one".