10002020078443 has 2 divisors, whose sum is σ = 10002020078444. Its totient is φ = 10002020078442.

The previous prime is 10002020078399. The next prime is 10002020078447. The reversal of 10002020078443 is 34487002020001.

10002020078443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10002020078443 is a prime.

It is not a weakly prime, because it can be changed into another prime (10002020078447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001010039221 + 5001010039222.

It is an arithmetic number, because the mean of its divisors is an integer number (5001010039222).

Almost surely, 2^{10002020078443} is an apocalyptic number.

10002020078443 is a deficient number, since it is larger than the sum of its proper divisors (1).

10002020078443 is an equidigital number, since it uses as much as digits as its factorization.

10002020078443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 10002020078443 its reverse (34487002020001), we get a palindrome (44489022098444).

The spelling of 10002020078443 in words is "ten trillion, two billion, twenty million, seventy-eight thousand, four hundred forty-three".