12005203591 has 2 divisors, whose sum is σ = 12005203592. Its totient is φ = 12005203590.

The previous prime is 12005203549. The next prime is 12005203597. The reversal of 12005203591 is 19530250021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12005203591 - 2¹³ = 12005195399 is a prime.

It is a super-2 number, since 2×12005203591² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12005203597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002601795 + 6002601796.

It is an arithmetic number, because the mean of its divisors is an integer number (6002601796).

Almost surely, 2^12005203591 is an apocalyptic number.

12005203591 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005203591 is an equidigital number, since it uses as much as digits as its factorization.

12005203591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 12005203591 in words is "twelve billion, five million, two hundred three thousand, five hundred ninety-one".