12953284381 has 2 divisors, whose sum is σ = 12953284382. Its totient is φ = 12953284380.

The previous prime is 12953284313. The next prime is 12953284403. The reversal of 12953284381 is 18348235921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10725916356 + 2227368025 = 103566^2 + 47195^2 .

It is an emirp because it is prime and its reverse (18348235921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12953284381 - 2¹¹ = 12953282333 is a prime.

It is a super-2 number, since 2×12953284381² (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 (12953284301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6476642190 + 6476642191.

It is an arithmetic number, because the mean of its divisors is an integer number (6476642191).

Almost surely, 2^12953284381 is an apocalyptic number.

It is an amenable number.

12953284381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12953284381 is an equidigital number, since it uses as much as digits as its factorization.

12953284381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The spelling of 12953284381 in words is "twelve billion, nine hundred fifty-three million, two hundred eighty-four thousand, three hundred eighty-one".