20133232230 has 32 divisors (see below), whose sum is σ = 48341751264. Its totient is φ = 5366418176.

The previous prime is 20133232211. The next prime is 20133232237. The reversal of 20133232230 is 3223233102.

It is a super-2 number, since 2×20133232230² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20133232197 and 20133232206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133232237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85239 + ... + 218018.

It is an arithmetic number, because the mean of its divisors is an integer number (1510679727).

Almost surely, 2^20133232230 is an apocalyptic number.

20133232230 is an abundant number, since it is smaller than the sum of its proper divisors (28208519034).

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

20133232230 is a wasteful number, since it uses less digits than its factorization.

20133232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305480.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20133232230 its reverse (3223233102), we get a palindrome (23356465332).

The spelling of 20133232230 in words is "twenty billion, one hundred thirty-three million, two hundred thirty-two thousand, two hundred thirty".