11989621313323 has 4 divisors (see below), whose sum is σ = 12313665132640. Its totient is φ = 11665577494008.

The previous prime is 11989621313317. The next prime is 11989621313407. The reversal of 11989621313323 is 32331312698911.

It is a happy number.

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 11989621313323 - 2²⁵ = 11989587758891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11989621383323) 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, 162021909603 + ... + 162021909676.

It is an arithmetic number, because the mean of its divisors is an integer number (3078416283160).

Almost surely, 2^{11989621313323} is an apocalyptic number.

11989621313323 is a deficient number, since it is larger than the sum of its proper divisors (324043819317).

11989621313323 is an equidigital number, since it uses as much as digits as its factorization.

11989621313323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324043819316.

The product of its digits is 1259712, while the sum is 52.

The spelling of 11989621313323 in words is "eleven trillion, nine hundred eighty-nine billion, six hundred twenty-one million, three hundred thirteen thousand, three hundred twenty-three".