23220030330 has 72 divisors (see below), whose sum is σ = 70228758132. Its totient is φ = 5307434496.

The previous prime is 23220030299. The next prime is 23220030343. The reversal of 23220030330 is 3303002232.

It can be written as a sum of positive squares in 2 ways, for example, as 21258514809 + 1961515521 = 145803^2 + 44289^2 .

It is a super-2 number, since 2×23220030330² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2628247 + ... + 2637066.

Almost surely, 2^23220030330 is an apocalyptic number.

23220030330 is an abundant number, since it is smaller than the sum of its proper divisors (47008727802).

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

23220030330 is a wasteful number, since it uses less digits than its factorization.

23220030330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265340 (or 5265330 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 23220030330 its reverse (3303002232), we get a palindrome (26523032562).

The spelling of 23220030330 in words is "twenty-three billion, two hundred twenty million, thirty thousand, three hundred thirty".