12131241149 has 2 divisors, whose sum is σ = 12131241150. Its totient is φ = 12131241148.

The previous prime is 12131241139. The next prime is 12131241173. The reversal of 12131241149 is 94114213121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10908340249 + 1222900900 = 104443^2 + 34970^2 .

It is an emirp because it is prime and its reverse (94114213121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12131241149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12131241119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065620574 + 6065620575.

It is an arithmetic number, because the mean of its divisors is an integer number (6065620575).

Almost surely, 2^12131241149 is an apocalyptic number.

It is an amenable number.

12131241149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131241149 is an equidigital number, since it uses as much as digits as its factorization.

12131241149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The spelling of 12131241149 in words is "twelve billion, one hundred thirty-one million, two hundred forty-one thousand, one hundred forty-nine".