22331332013 has 4 divisors (see below), whose sum is σ = 22645857888. Its totient is φ = 22016806140.

The previous prime is 22331331989. The next prime is 22331332033. The reversal of 22331332013 is 31023313322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22331332013 - 2¹² = 22331327917 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 22331332013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331332033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157262831 + ... + 157262972.

It is an arithmetic number, because the mean of its divisors is an integer number (5661464472).

Almost surely, 2^22331332013 is an apocalyptic number.

It is an amenable number.

22331332013 is a deficient number, since it is larger than the sum of its proper divisors (314525875).

22331332013 is an equidigital number, since it uses as much as digits as its factorization.

22331332013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314525874.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 22331332013 its reverse (31023313322), we get a palindrome (53354645335).

The spelling of 22331332013 in words is "twenty-two billion, three hundred thirty-one million, three hundred thirty-two thousand, thirteen".