232121001023 has 4 divisors (see below), whose sum is σ = 233545056408. Its totient is φ = 230696945640.

The previous prime is 232121001019. The next prime is 232121001043. The reversal of 232121001023 is 320100121232.

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 232121001023 - 2² = 232121001019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232121000992 and 232121001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232121001043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712027448 + ... + 712027773.

It is an arithmetic number, because the mean of its divisors is an integer number (58386264102).

Almost surely, 2^232121001023 is an apocalyptic number.

232121001023 is a deficient number, since it is larger than the sum of its proper divisors (1424055385).

232121001023 is a wasteful number, since it uses less digits than its factorization.

232121001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424055384.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 232121001023 its reverse (320100121232), we get a palindrome (552221122255).

The spelling of 232121001023 in words is "two hundred thirty-two billion, one hundred twenty-one million, one thousand, twenty-three".