421102310121 has 12 divisors (see below), whose sum is σ = 608378670900. Its totient is φ = 280679591040.

The previous prime is 421102310119. The next prime is 421102310137. The reversal of 421102310121 is 121013201124.

421102310121 is a `hidden beast` number, since 421 + 1 + 0 + 231 + 0 + 12 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 272133328896 + 148968981225 = 521664^2 + 385965^2 .

It is not a de Polignac number, because 421102310121 - 2¹ = 421102310119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421102310094 and 421102310103.

It is not an unprimeable number, because it can be changed into a prime (421102310521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4558596 + ... + 4650053.

It is an arithmetic number, because the mean of its divisors is an integer number (50698222575).

Almost surely, 2^421102310121 is an apocalyptic number.

It is an amenable number.

421102310121 is a deficient number, since it is larger than the sum of its proper divisors (187276360779).

421102310121 is a wasteful number, since it uses less digits than its factorization.

421102310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9213736 (or 9213733 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 421102310121 its reverse (121013201124), we get a palindrome (542115511245).

The spelling of 421102310121 in words is "four hundred twenty-one billion, one hundred two million, three hundred ten thousand, one hundred twenty-one".