12011023319 has 4 divisors (see below), whose sum is σ = 12063935544. Its totient is φ = 11958111096.

The previous prime is 12011023303. The next prime is 12011023327. The reversal of 12011023319 is 91332011021.

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 12011023319 - 2⁴ = 12011023303 is a prime.

It is a super-2 number, since 2×12011023319² (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 = 12011023294 and 12011023303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011023019) 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, 26455772 + ... + 26456225.

It is an arithmetic number, because the mean of its divisors is an integer number (3015983886).

Almost surely, 2^12011023319 is an apocalyptic number.

12011023319 is a deficient number, since it is larger than the sum of its proper divisors (52912225).

12011023319 is an equidigital number, since it uses as much as digits as its factorization.

12011023319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52912224.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 12011023319 in words is "twelve billion, eleven million, twenty-three thousand, three hundred nineteen".