12124324997 has 4 divisors (see below), whose sum is σ = 12353085900. Its totient is φ = 11895564096.

The previous prime is 12124324957. The next prime is 12124325027. The reversal of 12124324997 is 79942342121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5813452516 + 6310872481 = 76246^2 + 79441^2 .

It is a cyclic number.

It is not a de Polignac number, because 12124324997 - 2¹⁴ = 12124308613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124324907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114380372 + ... + 114380477.

It is an arithmetic number, because the mean of its divisors is an integer number (3088271475).

Almost surely, 2^12124324997 is an apocalyptic number.

It is an amenable number.

12124324997 is a deficient number, since it is larger than the sum of its proper divisors (228760903).

12124324997 is an equidigital number, since it uses as much as digits as its factorization.

12124324997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228760902.

The product of its digits is 217728, while the sum is 44.

The spelling of 12124324997 in words is "twelve billion, one hundred twenty-four million, three hundred twenty-four thousand, nine hundred ninety-seven".