100421335143 has 16 divisors (see below), whose sum is σ = 152793224160. Its totient is φ = 65138162688.

The previous prime is 100421335067. The next prime is 100421335181. The reversal of 100421335143 is 341533124001.

It is a happy number.

100421335143 is a `hidden beast` number, since 10 + 0 + 4 + 2 + 133 + 514 + 3 = 666.

It is not a de Polignac number, because 100421335143 - 2⁸ = 100421334887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421335543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50259930 + ... + 50261927.

It is an arithmetic number, because the mean of its divisors is an integer number (9549576510).

Almost surely, 2^100421335143 is an apocalyptic number.

100421335143 is a deficient number, since it is larger than the sum of its proper divisors (52371889017).

100421335143 is a wasteful number, since it uses less digits than its factorization.

100421335143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100521903 (or 100521897 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 100421335143 its reverse (341533124001), we get a palindrome (441954459144).

The spelling of 100421335143 in words is "one hundred billion, four hundred twenty-one million, three hundred thirty-five thousand, one hundred forty-three".