203111303020043 has 12 divisors (see below), whose sum is σ = 223395962800920. Its totient is φ = 184529699962080.

The previous prime is 203111303019983. The next prime is 203111303020063. The reversal of 203111303020043 is 340020303111302.

It is not a de Polignac number, because 203111303020043 - 2¹² = 203111303015947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203111303020063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531349730 + ... + 531731847.

It is an arithmetic number, because the mean of its divisors is an integer number (18616330233410).

Almost surely, 2^{203111303020043} is an apocalyptic number.

203111303020043 is a deficient number, since it is larger than the sum of its proper divisors (20284659780877).

203111303020043 is a wasteful number, since it uses less digits than its factorization.

203111303020043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063083178 (or 1063083167 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203111303020043 its reverse (340020303111302), we get a palindrome (543131606131345).

The spelling of 203111303020043 in words is "two hundred three trillion, one hundred eleven billion, three hundred three million, twenty thousand, forty-three".