232509368921 has 8 divisors (see below), whose sum is σ = 233402764800. Its totient is φ = 231616234080.

The previous prime is 232509368879. The next prime is 232509368929. The reversal of 232509368921 is 129863905232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232509368921 is a prime.

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 232509368921.

It is not an unprimeable number, because it can be changed into a prime (232509368929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1824245 + ... + 1947533.

It is an arithmetic number, because the mean of its divisors is an integer number (29175345600).

Almost surely, 2^232509368921 is an apocalyptic number.

It is an amenable number.

232509368921 is a deficient number, since it is larger than the sum of its proper divisors (893395879).

232509368921 is a wasteful number, since it uses less digits than its factorization.

232509368921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130519.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 232509368921 in words is "two hundred thirty-two billion, five hundred nine million, three hundred sixty-eight thousand, nine hundred twenty-one".