232121220231309 has 16 divisors (see below), whose sum is σ = 311225415621120. Its totient is φ = 153882260460720.

The previous prime is 232121220231289. The next prime is 232121220231323. The reversal of 232121220231309 is 903132022121232.

232121220231309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 232121220231309 - 2¹⁶ = 232121220165773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 232121220231309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232121220231389) 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, 132342894 + ... + 134085360.

It is an arithmetic number, because the mean of its divisors is an integer number (19451588476320).

Almost surely, 2^{232121220231309} is an apocalyptic number.

It is an amenable number.

232121220231309 is a deficient number, since it is larger than the sum of its proper divisors (79104195389811).

232121220231309 is a wasteful number, since it uses less digits than its factorization.

232121220231309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990720.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 232121220231309 in words is "two hundred thirty-two trillion, one hundred twenty-one billion, two hundred twenty million, two hundred thirty-one thousand, three hundred nine".