20030442857143 has 8 divisors (see below), whose sum is σ = 20370168898560. Its totient is φ = 19690724382840.

The previous prime is 20030442857111. The next prime is 20030442857167. The reversal of 20030442857143 is 34175824403002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20030442857143 - 2⁵ = 20030442857111 is a prime.

It is a super-2 number, since 2×20030442857143² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20030442857143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030442858143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3580288 + ... + 7271818.

It is an arithmetic number, because the mean of its divisors is an integer number (2546271112320).

Almost surely, 2^{20030442857143} is an apocalyptic number.

20030442857143 is a deficient number, since it is larger than the sum of its proper divisors (339726041417).

20030442857143 is an equidigital number, since it uses as much as digits as its factorization.

20030442857143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783557.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 20030442857143 in words is "twenty trillion, thirty billion, four hundred forty-two million, eight hundred fifty-seven thousand, one hundred forty-three".