31533532223 has 8 divisors (see below), whose sum is σ = 31564169280. Its totient is φ = 31502914560.

The previous prime is 31533532213. The next prime is 31533532241. The reversal of 31533532223 is 32223533513.

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

It is a cyclic number.

It is not a de Polignac number, because 31533532223 - 2⁴ = 31533532207 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 31533532223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31533532213) 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, 7635023 + ... + 7639151.

It is an arithmetic number, because the mean of its divisors is an integer number (3945521160).

Almost surely, 2^31533532223 is an apocalyptic number.

31533532223 is a deficient number, since it is larger than the sum of its proper divisors (30637057).

31533532223 is a wasteful number, since it uses less digits than its factorization.

31533532223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9697.

The product of its digits is 48600, while the sum is 32.

The spelling of 31533532223 in words is "thirty-one billion, five hundred thirty-three million, five hundred thirty-two thousand, two hundred twenty-three".