100421342143 has 24 divisors (see below), whose sum is σ = 107535360240. Its totient is φ = 93751447680.

The previous prime is 100421342113. The next prime is 100421342149. The reversal of 100421342143 is 341243124001.

It is a de Polignac number, because none of the positive numbers 2^k-100421342143 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 (100421342149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9858513 + ... + 9868693.

It is an arithmetic number, because the mean of its divisors is an integer number (4480640010).

Almost surely, 2^100421342143 is an apocalyptic number.

100421342143 is a deficient number, since it is larger than the sum of its proper divisors (7114018097).

100421342143 is a wasteful number, since it uses less digits than its factorization.

100421342143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615 (or 10596 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 100421342143 its reverse (341243124001), we get a palindrome (441664466144).

The spelling of 100421342143 in words is "one hundred billion, four hundred twenty-one million, three hundred forty-two thousand, one hundred forty-three".