20133121121230 has 16 divisors (see below), whose sum is σ = 39027280942944. Its totient is φ = 7433767798560.

The previous prime is 20133121121213. The next prime is 20133121121233. The reversal of 20133121121230 is 3212112133102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133121121233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77435081106 + ... + 77435081365.

It is an arithmetic number, because the mean of its divisors is an integer number (2439205058934).

Almost surely, 2^{20133121121230} is an apocalyptic number.

20133121121230 is a deficient number, since it is larger than the sum of its proper divisors (18894159821714).

20133121121230 is a wasteful number, since it uses less digits than its factorization.

20133121121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154870162491.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20133121121230 its reverse (3212112133102), we get a palindrome (23345233254332).

The spelling of 20133121121230 in words is "twenty trillion, one hundred thirty-three billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred thirty".