20133220232 has 32 divisors (see below), whose sum is σ = 39569856480. Its totient is φ = 9592679040.

The previous prime is 20133220193. The next prime is 20133220267. The reversal of 20133220232 is 23202233102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699638 + ... + 727845.

It is an arithmetic number, because the mean of its divisors is an integer number (1236558015).

Almost surely, 2^20133220232 is an apocalyptic number.

It is an amenable number.

20133220232 is a deficient number, since it is larger than the sum of its proper divisors (19436636248).

20133220232 is a wasteful number, since it uses less digits than its factorization.

20133220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427573 (or 1427569 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20133220232 its reverse (23202233102), we get a palindrome (43335453334).

The spelling of 20133220232 in words is "twenty billion, one hundred thirty-three million, two hundred twenty thousand, two hundred thirty-two".