421331101 has 8 divisors (see below), whose sum is σ = 425476800. Its totient is φ = 417201600.

The previous prime is 421331069. The next prime is 421331117. The reversal of 421331101 is 101133124.

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

It is a cyclic number.

It is not a de Polignac number, because 421331101 - 2⁵ = 421331069 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 (421331161) 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, 51960 + ... + 59518.

It is an arithmetic number, because the mean of its divisors is an integer number (53184600).

Almost surely, 2^421331101 is an apocalyptic number.

It is an amenable number.

421331101 is a deficient number, since it is larger than the sum of its proper divisors (4145699).

421331101 is a wasteful number, since it uses less digits than its factorization.

421331101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 421331101 is about 20526.3513806034. The cubic root of 421331101 is about 749.6775508701.

Adding to 421331101 its reverse (101133124), we get a palindrome (522464225).

It can be divided in two parts, 42133 and 1101, that added together give a palindrome (43234).

The spelling of 421331101 in words is "four hundred twenty-one million, three hundred thirty-one thousand, one hundred one".