69231321 has 8 divisors (see below), whose sum is σ = 102564960. Its totient is φ = 46154196.

The previous prime is 69231299. The next prime is 69231341. The reversal of 69231321 is 12313296.

It is not a de Polignac number, because 69231321 - 2¹⁰ = 69230297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2564123 = 69231321 / (6 + 9 + 2 + 3 + 1 + 3 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (69231341) 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, 1282035 + ... + 1282088.

It is an arithmetic number, because the mean of its divisors is an integer number (12820620).

Almost surely, 2^69231321 is an apocalyptic number.

It is an amenable number.

69231321 is a deficient number, since it is larger than the sum of its proper divisors (33333639).

69231321 is a wasteful number, since it uses less digits than its factorization.

69231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564132 (or 2564126 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 69231321 is about 8320.5361005166. The cubic root of 69231321 is about 410.6144287431.

The spelling of 69231321 in words is "sixty-nine million, two hundred thirty-one thousand, three hundred twenty-one".