20383516823 has 2 divisors, whose sum is σ = 20383516824. Its totient is φ = 20383516822.

The previous prime is 20383516801. The next prime is 20383516889. The reversal of 20383516823 is 32861538302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20383516823 - 2¹⁴ = 20383500439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20383516423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10191758411 + 10191758412.

It is an arithmetic number, because the mean of its divisors is an integer number (10191758412).

Almost surely, 2^20383516823 is an apocalyptic number.

20383516823 is a deficient number, since it is larger than the sum of its proper divisors (1).

20383516823 is an equidigital number, since it uses as much as digits as its factorization.

20383516823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 20383516823 in words is "twenty billion, three hundred eighty-three million, five hundred sixteen thousand, eight hundred twenty-three".