20343143011103 has 32 divisors (see below), whose sum is σ = 23851857383424. Its totient is φ = 17174435040000.

The previous prime is 20343143011091. The next prime is 20343143011129. The reversal of 20343143011103 is 30111034134302.

It is a cyclic number.

It is not a de Polignac number, because 20343143011103 - 2¹⁸ = 20343142748959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343143011193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11073851 + ... + 12779532.

It is an arithmetic number, because the mean of its divisors is an integer number (745370543232).

Almost surely, 2^{20343143011103} is an apocalyptic number.

20343143011103 is a deficient number, since it is larger than the sum of its proper divisors (3508714372321).

20343143011103 is a wasteful number, since it uses less digits than its factorization.

20343143011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23853527.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20343143011103 its reverse (30111034134302), we get a palindrome (50454177145405).

The spelling of 20343143011103 in words is "twenty trillion, three hundred forty-three billion, one hundred forty-three million, eleven thousand, one hundred three".