20323203374737 has 2 divisors, whose sum is σ = 20323203374738. Its totient is φ = 20323203374736.

The previous prime is 20323203374699. The next prime is 20323203374753. The reversal of 20323203374737 is 73747330232302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20138948670736 + 184254704001 = 4487644^2 + 429249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323203374737 is a prime.

It is not a weakly prime, because it can be changed into another prime (20323203374767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161601687368 + 10161601687369.

It is an arithmetic number, because the mean of its divisors is an integer number (10161601687369).

Almost surely, 2^{20323203374737} is an apocalyptic number.

It is an amenable number.

20323203374737 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323203374737 is an equidigital number, since it uses as much as digits as its factorization.

20323203374737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2667168, while the sum is 46.

The spelling of 20323203374737 in words is "twenty trillion, three hundred twenty-three billion, two hundred three million, three hundred seventy-four thousand, seven hundred thirty-seven".