20123448799 has 2 divisors, whose sum is σ = 20123448800. Its totient is φ = 20123448798.

The previous prime is 20123448773. The next prime is 20123448833. The reversal of 20123448799 is 99784432102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20123448799 - 2¹¹ = 20123446751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123448769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061724399 + 10061724400.

It is an arithmetic number, because the mean of its divisors is an integer number (10061724400).

Almost surely, 2^20123448799 is an apocalyptic number.

20123448799 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123448799 is an equidigital number, since it uses as much as digits as its factorization.

20123448799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 20123448799 in words is "twenty billion, one hundred twenty-three million, four hundred forty-eight thousand, seven hundred ninety-nine".