12001000331 has 2 divisors, whose sum is σ = 12001000332. Its totient is φ = 12001000330.

The previous prime is 12001000321. The next prime is 12001000337. The reversal of 12001000331 is 13300010021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12001000331 - 2¹⁸ = 12000738187 is a prime.

It is a super-2 number, since 2×12001000331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12001000337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000500165 + 6000500166.

It is an arithmetic number, because the mean of its divisors is an integer number (6000500166).

Almost surely, 2^12001000331 is an apocalyptic number.

12001000331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001000331 is an equidigital number, since it uses as much as digits as its factorization.

12001000331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 12001000331 its reverse (13300010021), we get a palindrome (25301010352).

The spelling of 12001000331 in words is "twelve billion, one million, three hundred thirty-one", and thus it is an aban number.