12231186377 has 2 divisors, whose sum is σ = 12231186378. Its totient is φ = 12231186376.

The previous prime is 12231186349. The next prime is 12231186397. The reversal of 12231186377 is 77368113221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10171932736 + 2059253641 = 100856^2 + 45379^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231186377 - 2¹⁶ = 12231120841 is a prime.

It is a super-2 number, since 2×12231186377² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12231186347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115593188 + 6115593189.

It is an arithmetic number, because the mean of its divisors is an integer number (6115593189).

Almost surely, 2^12231186377 is an apocalyptic number.

It is an amenable number.

12231186377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231186377 is an equidigital number, since it uses as much as digits as its factorization.

12231186377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

Adding to 12231186377 its reverse (77368113221), we get a palindrome (89599299598).

The spelling of 12231186377 in words is "twelve billion, two hundred thirty-one million, one hundred eighty-six thousand, three hundred seventy-seven".