32121010111 has 16 divisors (see below), whose sum is σ = 36354806208. Its totient is φ = 28211814400.

The previous prime is 32121010099. The next prime is 32121010121. The reversal of 32121010111 is 11101012123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 32121010111 - 2¹¹ = 32121008063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32121010091 and 32121010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121010121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985810 + ... + 1017871.

It is an arithmetic number, because the mean of its divisors is an integer number (2272175388).

Almost surely, 2^32121010111 is an apocalyptic number.

32121010111 is a deficient number, since it is larger than the sum of its proper divisors (4233796097).

32121010111 is a wasteful number, since it uses less digits than its factorization.

32121010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003762.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 32121010111 its reverse (11101012123), we get a palindrome (43222022234).

The spelling of 32121010111 in words is "thirty-two billion, one hundred twenty-one million, ten thousand, one hundred eleven".