20300012143 has 4 divisors (see below), whose sum is σ = 20335689360. Its totient is φ = 20264334928.

The previous prime is 20300012107. The next prime is 20300012147. The reversal of 20300012143 is 34121000302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34121000302 = 2 ⋅17060500151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20300012143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300012147) 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, 17837755 + ... + 17838892.

It is an arithmetic number, because the mean of its divisors is an integer number (5083922340).

Almost surely, 2^20300012143 is an apocalyptic number.

20300012143 is a deficient number, since it is larger than the sum of its proper divisors (35677217).

20300012143 is an equidigital number, since it uses as much as digits as its factorization.

20300012143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35677216.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20300012143 its reverse (34121000302), we get a palindrome (54421012445).

The spelling of 20300012143 in words is "twenty billion, three hundred million, twelve thousand, one hundred forty-three".