12003023491 has 2 divisors, whose sum is σ = 12003023492. Its totient is φ = 12003023490.

The previous prime is 12003023407. The next prime is 12003023531. The reversal of 12003023491 is 19432030021.

It is a strong prime.

It is an emirp because it is prime and its reverse (19432030021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12003023491 - 2¹⁵ = 12002990723 is a prime.

It is not a weakly prime, because it can be changed into another prime (12003024491) 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 as a sum of consecutive naturals, namely, 6001511745 + 6001511746.

It is an arithmetic number, because the mean of its divisors is an integer number (6001511746).

Almost surely, 2^12003023491 is an apocalyptic number.

12003023491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12003023491 is an equidigital number, since it uses as much as digits as its factorization.

12003023491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 12003023491 in words is "twelve billion, three million, twenty-three thousand, four hundred ninety-one".