232121230391 has 8 divisors (see below), whose sum is σ = 246575997360. Its totient is φ = 217755416448.

The previous prime is 232121230387. The next prime is 232121230403. The reversal of 232121230391 is 193032121232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 232121230391 - 2² = 232121230387 is a prime.

It is a super-3 number, since 3×232121230391³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232121230301) 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 7 ways as a sum of consecutive naturals, for example, 22232876 + ... + 22243313.

It is an arithmetic number, because the mean of its divisors is an integer number (30821999670).

Almost surely, 2^232121230391 is an apocalyptic number.

232121230391 is a deficient number, since it is larger than the sum of its proper divisors (14454766969).

232121230391 is a wasteful number, since it uses less digits than its factorization.

232121230391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44476513.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 232121230391 in words is "two hundred thirty-two billion, one hundred twenty-one million, two hundred thirty thousand, three hundred ninety-one".