30231233320 has 32 divisors (see below), whose sum is σ = 69858664200. Its totient is φ = 11765668608.

The previous prime is 30231233311. The next prime is 30231233321. The reversal of 30231233320 is 2333213203.

It can be written as a sum of positive squares in 4 ways, for example, as 23145971044 + 7085262276 = 152138^2 + 84174^2 .

It is a super-4 number, since 4×30231233320⁴ (a number of 43 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30231233291 and 30231233300.

It is not an unprimeable number, because it can be changed into a prime (30231233321) 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, 10211775 + ... + 10214734.

Almost surely, 2^30231233320 is an apocalyptic number.

It is an amenable number.

30231233320 is an abundant number, since it is smaller than the sum of its proper divisors (39627430880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30231233320 is a wasteful number, since it uses less digits than its factorization.

30231233320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20426557 (or 20426553 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 30231233320 its reverse (2333213203), we get a palindrome (32564446523).

The spelling of 30231233320 in words is "thirty billion, two hundred thirty-one million, two hundred thirty-three thousand, three hundred twenty".