12712300981 has 2 divisors, whose sum is σ = 12712300982. Its totient is φ = 12712300980.

The previous prime is 12712300963. The next prime is 12712301023. The reversal of 12712300981 is 18900321721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8052190756 + 4660110225 = 89734^2 + 68265^2 .

It is an emirp because it is prime and its reverse (18900321721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12712300981 - 2¹⁷ = 12712169909 is a prime.

It is a super-2 number, since 2×12712300981² (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 (12712300921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6356150490 + 6356150491.

It is an arithmetic number, because the mean of its divisors is an integer number (6356150491).

Almost surely, 2^12712300981 is an apocalyptic number.

It is an amenable number.

12712300981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12712300981 is an equidigital number, since it uses as much as digits as its factorization.

12712300981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 12712300981 in words is "twelve billion, seven hundred twelve million, three hundred thousand, nine hundred eighty-one".