20100303043 has 4 divisors (see below), whose sum is σ = 20307522760. Its totient is φ = 19893083328.

The previous prime is 20100303031. The next prime is 20100303059. The reversal of 20100303043 is 34030300102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20100303043 - 2²⁹ = 19563432131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100303343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103609713 + ... + 103609906.

It is an arithmetic number, because the mean of its divisors is an integer number (5076880690).

Almost surely, 2^20100303043 is an apocalyptic number.

20100303043 is a deficient number, since it is larger than the sum of its proper divisors (207219717).

20100303043 is an equidigital number, since it uses as much as digits as its factorization.

20100303043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207219716.

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

Adding to 20100303043 its reverse (34030300102), we get a palindrome (54130603145).

The spelling of 20100303043 in words is "twenty billion, one hundred million, three hundred three thousand, forty-three".