20203122893 has 2 divisors, whose sum is σ = 20203122894. Its totient is φ = 20203122892.

The previous prime is 20203122887. The next prime is 20203122911. The reversal of 20203122893 is 39822130202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18693178729 + 1509944164 = 136723^2 + 38858^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203122893 - 2⁶ = 20203122829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203122833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101561446 + 10101561447.

It is an arithmetic number, because the mean of its divisors is an integer number (10101561447).

Almost surely, 2^20203122893 is an apocalyptic number.

It is an amenable number.

20203122893 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203122893 is an equidigital number, since it uses as much as digits as its factorization.

20203122893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 20203122893 in words is "twenty billion, two hundred three million, one hundred twenty-two thousand, eight hundred ninety-three".