101042143 has 4 divisors (see below), whose sum is σ = 101171320. Its totient is φ = 100912968.

The previous prime is 101042141. The next prime is 101042167. The reversal of 101042143 is 341240101.

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 101042143 - 2¹ = 101042141 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 (101042141) 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, 63408 + ... + 64981.

It is an arithmetic number, because the mean of its divisors is an integer number (25292830).

Almost surely, 2^101042143 is an apocalyptic number.

101042143 is a deficient number, since it is larger than the sum of its proper divisors (129177).

101042143 is an equidigital number, since it uses as much as digits as its factorization.

101042143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129176.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 101042143 is about 10051.9720950667. The cubic root of 101042143 is about 465.7657141668.

Adding to 101042143 its reverse (341240101), we get a palindrome (442282244).

The spelling of 101042143 in words is "one hundred one million, forty-two thousand, one hundred forty-three".