12397106893 has 2 divisors, whose sum is σ = 12397106894. Its totient is φ = 12397106892.

The previous prime is 12397106851. The next prime is 12397106903. The reversal of 12397106893 is 39860179321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9653652009 + 2743454884 = 98253^2 + 52378^2 .

It is an emirp because it is prime and its reverse (39860179321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12397106893 is a prime.

It is a super-2 number, since 2×12397106893² (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 (12397106593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6198553446 + 6198553447.

It is an arithmetic number, because the mean of its divisors is an integer number (6198553447).

Almost surely, 2^12397106893 is an apocalyptic number.

It is an amenable number.

12397106893 is a deficient number, since it is larger than the sum of its proper divisors (1).

12397106893 is an equidigital number, since it uses as much as digits as its factorization.

12397106893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 12397106893 in words is "twelve billion, three hundred ninety-seven million, one hundred six thousand, eight hundred ninety-three".