232121023 has 4 divisors (see below), whose sum is σ = 232168248. Its totient is φ = 232073800.

The previous prime is 232121011. The next prime is 232121027. The reversal of 232121023 is 320121232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 232121023 - 2¹³ = 232112831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232120988 and 232121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232121027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15253 + ... + 26398.

It is an arithmetic number, because the mean of its divisors is an integer number (58042062).

Almost surely, 2^232121023 is an apocalyptic number.

232121023 is a deficient number, since it is larger than the sum of its proper divisors (47225).

232121023 is an equidigital number, since it uses as much as digits as its factorization.

232121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47224.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 232121023 is about 15235.5184683686. The cubic root of 232121023 is about 614.5701916786.

Adding to 232121023 its reverse (320121232), we get a palindrome (552242255).

The spelling of 232121023 in words is "two hundred thirty-two million, one hundred twenty-one thousand, twenty-three".