20001033043 has 2 divisors, whose sum is σ = 20001033044. Its totient is φ = 20001033042.

The previous prime is 20001033037. The next prime is 20001033053. The reversal of 20001033043 is 34033010002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001033043 is a prime.

It is a super-3 number, since 3×20001033043³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20001033053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000516521 + 10000516522.

It is an arithmetic number, because the mean of its divisors is an integer number (10000516522).

Almost surely, 2^20001033043 is an apocalyptic number.

20001033043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001033043 is an equidigital number, since it uses as much as digits as its factorization.

20001033043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20001033043 its reverse (34033010002), we get a palindrome (54034043045).

The spelling of 20001033043 in words is "twenty billion, one million, thirty-three thousand, forty-three".