20133144130421 has 32 divisors (see below), whose sum is σ = 25557352243200. Its totient is φ = 15462197688960.

The previous prime is 20133144130409. The next prime is 20133144130427. The reversal of 20133144130421 is 12403144133102.

It is a cyclic number.

It is not a de Polignac number, because 20133144130421 - 2²⁶ = 20133077021557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133144130427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36703085 + ... + 37247586.

It is an arithmetic number, because the mean of its divisors is an integer number (798667257600).

Almost surely, 2^{20133144130421} is an apocalyptic number.

It is an amenable number.

20133144130421 is a deficient number, since it is larger than the sum of its proper divisors (5424208112779).

20133144130421 is a wasteful number, since it uses less digits than its factorization.

20133144130421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73950809.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 20133144130421 its reverse (12403144133102), we get a palindrome (32536288263523).

The spelling of 20133144130421 in words is "twenty trillion, one hundred thirty-three billion, one hundred forty-four million, one hundred thirty thousand, four hundred twenty-one".