159911212323 has 4 divisors (see below), whose sum is σ = 213214949768. Its totient is φ = 106607474880.

The previous prime is 159911212313. The next prime is 159911212367. The reversal of 159911212323 is 323212119951.

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

It is not a de Polignac number, because 159911212323 - 2⁶ = 159911212259 is a prime.

It is a super-2 number, since 2×159911212323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159911212313) 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, 26651868718 + ... + 26651868723.

It is an arithmetic number, because the mean of its divisors is an integer number (53303737442).

Almost surely, 2^159911212323 is an apocalyptic number.

159911212323 is a deficient number, since it is larger than the sum of its proper divisors (53303737445).

159911212323 is an equidigital number, since it uses as much as digits as its factorization.

159911212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53303737444.

The product of its digits is 29160, while the sum is 39.

The spelling of 159911212323 in words is "one hundred fifty-nine billion, nine hundred eleven million, two hundred twelve thousand, three hundred twenty-three".