20000000423143 has 32 divisors (see below), whose sum is σ = 21707145299840. Its totient is φ = 18317623357440.

The previous prime is 20000000423119. The next prime is 20000000423153. The reversal of 20000000423143 is 34132400000002.

It is a cyclic number.

It is not a de Polignac number, because 20000000423143 - 2³⁷ = 19862561469671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20000000423143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000000423113) 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, 1143044371 + ... + 1143061867.

It is an arithmetic number, because the mean of its divisors is an integer number (678348290620).

Almost surely, 2^{20000000423143} is an apocalyptic number.

20000000423143 is a deficient number, since it is larger than the sum of its proper divisors (1707144876697).

20000000423143 is a wasteful number, since it uses less digits than its factorization.

20000000423143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19067.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20000000423143 its reverse (34132400000002), we get a palindrome (54132400423145).

The spelling of 20000000423143 in words is "twenty trillion, four hundred twenty-three thousand, one hundred forty-three".