20213133331121 has 8 divisors (see below), whose sum is σ = 20215540591488. Its totient is φ = 20210726250000.

The previous prime is 20213133330997. The next prime is 20213133331141. The reversal of 20213133331121 is 12113333131202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20213133331121 - 2²² = 20213129136817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213133331141) 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, 414595496 + ... + 414644246.

It is an arithmetic number, because the mean of its divisors is an integer number (2526942573936).

Almost surely, 2^{20213133331121} is an apocalyptic number.

It is an amenable number.

20213133331121 is a deficient number, since it is larger than the sum of its proper divisors (2407260367).

20213133331121 is a wasteful number, since it uses less digits than its factorization.

20213133331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89623.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 20213133331121 its reverse (12113333131202), we get a palindrome (32326466462323).

The spelling of 20213133331121 in words is "twenty trillion, two hundred thirteen billion, one hundred thirty-three million, three hundred thirty-one thousand, one hundred twenty-one".