20133223132 has 48 divisors (see below), whose sum is σ = 38881640448. Its totient is φ = 9045933120.

The previous prime is 20133223111. The next prime is 20133223157. The reversal of 20133223132 is 23132233102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1541373 + ... + 1554379.

It is an arithmetic number, because the mean of its divisors is an integer number (810034176).

Almost surely, 2^20133223132 is an apocalyptic number.

20133223132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20133223132 is a deficient number, since it is larger than the sum of its proper divisors (18748417316).

20133223132 is a wasteful number, since it uses less digits than its factorization.

20133223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426 (or 13424 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20133223132 its reverse (23132233102), we get a palindrome (43265456234).

The spelling of 20133223132 in words is "twenty billion, one hundred thirty-three million, two hundred twenty-three thousand, one hundred thirty-two".