20293552843 has 2 divisors, whose sum is σ = 20293552844. Its totient is φ = 20293552842.

The previous prime is 20293552831. The next prime is 20293552849. The reversal of 20293552843 is 34825539202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20293552843 - 2¹³ = 20293544651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20293552843.

It is not a weakly prime, because it can be changed into another prime (20293552849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10146776421 + 10146776422.

It is an arithmetic number, because the mean of its divisors is an integer number (10146776422).

Almost surely, 2^20293552843 is an apocalyptic number.

20293552843 is a deficient number, since it is larger than the sum of its proper divisors (1).

20293552843 is an equidigital number, since it uses as much as digits as its factorization.

20293552843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 20293552843 in words is "twenty billion, two hundred ninety-three million, five hundred fifty-two thousand, eight hundred forty-three".