12197511983 has 2 divisors, whose sum is σ = 12197511984. Its totient is φ = 12197511982.

The previous prime is 12197511923. The next prime is 12197512037. The reversal of 12197511983 is 38911579121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12197511983 - 2¹⁴ = 12197495599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12197511923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098755991 + 6098755992.

It is an arithmetic number, because the mean of its divisors is an integer number (6098755992).

Almost surely, 2^12197511983 is an apocalyptic number.

12197511983 is a deficient number, since it is larger than the sum of its proper divisors (1).

12197511983 is an equidigital number, since it uses as much as digits as its factorization.

12197511983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 47.

The spelling of 12197511983 in words is "twelve billion, one hundred ninety-seven million, five hundred eleven thousand, nine hundred eighty-three".