100421342 has 32 divisors (see below), whose sum is σ = 176125440. Its totient is φ = 42055200.

The previous prime is 100421333. The next prime is 100421357. The reversal of 100421342 is 243124001.

It is a self number, because there is not a number n which added to its sum of digits gives 100421342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141284 + ... + 141992.

It is an arithmetic number, because the mean of its divisors is an integer number (5503920).

Almost surely, 2^100421342 is an apocalyptic number.

100421342 is a deficient number, since it is larger than the sum of its proper divisors (75704098).

100421342 is a wasteful number, since it uses less digits than its factorization.

100421342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 100421342 is about 10021.0449554924. The cubic root of 100421342 is about 464.8098686981.

Adding to 100421342 its reverse (243124001), we get a palindrome (343545343).

The spelling of 100421342 in words is "one hundred million, four hundred twenty-one thousand, three hundred forty-two".