20133120021332 has 6 divisors (see below), whose sum is σ = 35232960037338. Its totient is φ = 10066560010664.

The previous prime is 20133120021299. The next prime is 20133120021337. The reversal of 20133120021332 is 23312002133102.

It can be written as a sum of positive squares in only one way, i.e., 13582571186116 + 6550548835216 = 3685454^2 + 2559404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20133120021298 and 20133120021307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133120021337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2516640002663 + ... + 2516640002670.

It is an arithmetic number, because the mean of its divisors is an integer number (5872160006223).

Almost surely, 2^{20133120021332} is an apocalyptic number.

It is an amenable number.

20133120021332 is a deficient number, since it is larger than the sum of its proper divisors (15099840016006).

20133120021332 is a wasteful number, since it uses less digits than its factorization.

20133120021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033280005337 (or 5033280005335 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20133120021332 its reverse (23312002133102), we get a palindrome (43445122154434).

The spelling of 20133120021332 in words is "twenty trillion, one hundred thirty-three billion, one hundred twenty million, twenty-one thousand, three hundred thirty-two".