20203351870043 has 2 divisors, whose sum is σ = 20203351870044. Its totient is φ = 20203351870042.

The previous prime is 20203351870033. The next prime is 20203351870063. The reversal of 20203351870043 is 34007815330202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20203351870043 - 2⁶ = 20203351869979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203351869979 and 20203351870006.

It is not a weakly prime, because it can be changed into another prime (20203351870003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101675935021 + 10101675935022.

It is an arithmetic number, because the mean of its divisors is an integer number (10101675935022).

Almost surely, 2^{20203351870043} is an apocalyptic number.

20203351870043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203351870043 is an equidigital number, since it uses as much as digits as its factorization.

20203351870043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 20203351870043 in words is "twenty trillion, two hundred three billion, three hundred fifty-one million, eight hundred seventy thousand, forty-three".