32121300121 has 4 divisors (see below), whose sum is σ = 32374223872. Its totient is φ = 31868376372.

The previous prime is 32121300091. The next prime is 32121300179. The reversal of 32121300121 is 12100312123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12100312123 = 11789 ⋅1026407.

It is a cyclic number.

It is not a de Polignac number, because 32121300121 - 2⁷ = 32121299993 is a prime.

It is a super-2 number, since 2×32121300121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32121300095 and 32121300104.

It is not an unprimeable number, because it can be changed into a prime (32121300191) 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 3 ways as a sum of consecutive naturals, for example, 126461685 + ... + 126461938.

It is an arithmetic number, because the mean of its divisors is an integer number (8093555968).

Almost surely, 2^32121300121 is an apocalyptic number.

It is an amenable number.

32121300121 is a deficient number, since it is larger than the sum of its proper divisors (252923751).

32121300121 is a wasteful number, since it uses less digits than its factorization.

32121300121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252923750.

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

Adding to 32121300121 its reverse (12100312123), we get a palindrome (44221612244).

The spelling of 32121300121 in words is "thirty-two billion, one hundred twenty-one million, three hundred thousand, one hundred twenty-one".