10142420143 has 4 divisors (see below), whose sum is σ = 10144852480. Its totient is φ = 10139987808.

The previous prime is 10142420117. The next prime is 10142420149. The reversal of 10142420143 is 34102424101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10142420143 - 2⁹ = 10142419631 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 (10142420149) 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, 1209903 + ... + 1218256.

It is an arithmetic number, because the mean of its divisors is an integer number (2536213120).

Almost surely, 2^10142420143 is an apocalyptic number.

10142420143 is a deficient number, since it is larger than the sum of its proper divisors (2432337).

10142420143 is an equidigital number, since it uses as much as digits as its factorization.

10142420143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432336.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10142420143 its reverse (34102424101), we get a palindrome (44244844244).

The spelling of 10142420143 in words is "ten billion, one hundred forty-two million, four hundred twenty thousand, one hundred forty-three".