20402143000143 has 8 divisors (see below), whose sum is σ = 27472192555056. Its totient is φ = 13466761056000.

The previous prime is 20402143000123. The next prime is 20402143000163. The reversal of 20402143000143 is 34100034120402.

It is an interprime number because it is at equal distance from previous prime (20402143000123) and next prime (20402143000163).

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

It is not a de Polignac number, because 20402143000143 - 2²⁴ = 20402126222927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402143000123) 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, 33666902338 + ... + 33666902943.

It is an arithmetic number, because the mean of its divisors is an integer number (3434024069382).

Almost surely, 2^{20402143000143} is an apocalyptic number.

20402143000143 is a deficient number, since it is larger than the sum of its proper divisors (7070049554913).

20402143000143 is a wasteful number, since it uses less digits than its factorization.

20402143000143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67333805385.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20402143000143 its reverse (34100034120402), we get a palindrome (54502177120545).

The spelling of 20402143000143 in words is "twenty trillion, four hundred two billion, one hundred forty-three million, one hundred forty-three", and thus it is an aban number.