100313421 has 8 divisors (see below), whose sum is σ = 144039840. Its totient is φ = 61731312.

The previous prime is 100313399. The next prime is 100313431. The reversal of 100313421 is 124313001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100313421 - 2¹⁰ = 100312397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100313421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100313431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286031 + ... + 1286108.

It is an arithmetic number, because the mean of its divisors is an integer number (18004980).

Almost surely, 2^100313421 is an apocalyptic number.

It is an amenable number.

100313421 is a deficient number, since it is larger than the sum of its proper divisors (43726419).

100313421 is a wasteful number, since it uses less digits than its factorization.

100313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572155.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 100313421 is about 10015.6587901146. The cubic root of 100313421 is about 464.6433014285.

Adding to 100313421 its reverse (124313001), we get a palindrome (224626422).

The spelling of 100313421 in words is "one hundred million, three hundred thirteen thousand, four hundred twenty-one".