20403500192297 has 2 divisors, whose sum is σ = 20403500192298. Its totient is φ = 20403500192296.

The previous prime is 20403500192239. The next prime is 20403500192351. The reversal of 20403500192297 is 79229100530402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10211450327296 + 10192049865001 = 3195536^2 + 3192499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20403500192297 is a prime.

It is not a weakly prime, because it can be changed into another prime (20403500192797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10201750096148 + 10201750096149.

It is an arithmetic number, because the mean of its divisors is an integer number (10201750096149).

Almost surely, 2^{20403500192297} is an apocalyptic number.

It is an amenable number.

20403500192297 is a deficient number, since it is larger than the sum of its proper divisors (1).

20403500192297 is an equidigital number, since it uses as much as digits as its factorization.

20403500192297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 20403500192297 in words is "twenty trillion, four hundred three billion, five hundred million, one hundred ninety-two thousand, two hundred ninety-seven".