13212859973 has 2 divisors, whose sum is σ = 13212859974. Its totient is φ = 13212859972.

The previous prime is 13212859937. The next prime is 13212859981. The reversal of 13212859973 is 37995821231.

Together with previous prime (13212859937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12476443204 + 736416769 = 111698^2 + 27137^2 .

It is a cyclic number.

It is not a de Polignac number, because 13212859973 - 2¹⁶ = 13212794437 is a prime.

It is a super-2 number, since 2×13212859973² (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 (13212859903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606429986 + 6606429987.

It is an arithmetic number, because the mean of its divisors is an integer number (6606429987).

Almost surely, 2^13212859973 is an apocalyptic number.

It is an amenable number.

13212859973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212859973 is an equidigital number, since it uses as much as digits as its factorization.

13212859973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 50.

The spelling of 13212859973 in words is "thirteen billion, two hundred twelve million, eight hundred fifty-nine thousand, nine hundred seventy-three".