21410231121 has 24 divisors (see below), whose sum is σ = 32523027264. Its totient is φ = 14072441040.

The previous prime is 21410231077. The next prime is 21410231147. The reversal of 21410231121 is 12113201412.

21410231121 is a `hidden beast` number, since 2 + 1 + 410 + 231 + 1 + 21 = 666.

It is not a de Polignac number, because 21410231121 - 2⁷ = 21410230993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21410231094 and 21410231103.

It is not an unprimeable number, because it can be changed into a prime (21410231321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 603226 + ... + 637731.

It is an arithmetic number, because the mean of its divisors is an integer number (1355126136).

Almost surely, 2^21410231121 is an apocalyptic number.

It is an amenable number.

21410231121 is a deficient number, since it is larger than the sum of its proper divisors (11112796143).

21410231121 is an equidigital number, since it uses as much as digits as its factorization.

21410231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241043 (or 1241031 counting only the distinct ones).

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

Adding to 21410231121 its reverse (12113201412), we get a palindrome (33523432533).

The spelling of 21410231121 in words is "twenty-one billion, four hundred ten million, two hundred thirty-one thousand, one hundred twenty-one".