12001919293 has 16 divisors (see below), whose sum is σ = 14781880960. Its totient is φ = 9489410496.

The previous prime is 12001919287. The next prime is 12001919327. The reversal of 12001919293 is 39291910021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12001919293 - 2³³ = 3411984701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001919273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87571 + ... + 177967.

It is an arithmetic number, because the mean of its divisors is an integer number (923867560).

Almost surely, 2^12001919293 is an apocalyptic number.

12001919293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12001919293 is a deficient number, since it is larger than the sum of its proper divisors (2779961667).

12001919293 is a wasteful number, since it uses less digits than its factorization.

12001919293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91876.

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 12001919293 in words is "twelve billion, one million, nine hundred nineteen thousand, two hundred ninety-three".