232121434501 has 4 divisors (see below), whose sum is σ = 253223383104. Its totient is φ = 211019485900.

The previous prime is 232121434499. The next prime is 232121434529. The reversal of 232121434501 is 105434121232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232121434501 - 2¹ = 232121434499 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232121434501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232121434201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10550974285 + ... + 10550974306.

It is an arithmetic number, because the mean of its divisors is an integer number (63305845776).

Almost surely, 2^232121434501 is an apocalyptic number.

It is an amenable number.

232121434501 is a deficient number, since it is larger than the sum of its proper divisors (21101948603).

232121434501 is a wasteful number, since it uses less digits than its factorization.

232121434501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21101948602.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 232121434501 its reverse (105434121232), we get a palindrome (337555555733).

The spelling of 232121434501 in words is "two hundred thirty-two billion, one hundred twenty-one million, four hundred thirty-four thousand, five hundred one".