12038932991 has 4 divisors (see below), whose sum is σ = 12039153984. Its totient is φ = 12038712000.

The previous prime is 12038932957. The next prime is 12038933059. The reversal of 12038932991 is 19923983021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19923983021 = 137 ⋅145430533.

It is a cyclic number.

It is not a de Polignac number, because 12038932991 - 2²⁶ = 11971824127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12038932391) 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, 35666 + ... + 159216.

It is an arithmetic number, because the mean of its divisors is an integer number (3009788496).

Almost surely, 2^12038932991 is an apocalyptic number.

12038932991 is a deficient number, since it is larger than the sum of its proper divisors (220993).

12038932991 is an equidigital number, since it uses as much as digits as its factorization.

12038932991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220992.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 12038932991 in words is "twelve billion, thirty-eight million, nine hundred thirty-two thousand, nine hundred ninety-one".