20132223121 has 8 divisors (see below), whose sum is σ = 20176266240. Its totient is φ = 20088221712.

The previous prime is 20132223109. The next prime is 20132223179. The reversal of 20132223121 is 12132223102.

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 20132223121 - 2⁹ = 20132222609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20132223101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076670 + ... + 1095208.

It is an arithmetic number, because the mean of its divisors is an integer number (2522033280).

Almost surely, 2^20132223121 is an apocalyptic number.

It is an amenable number.

20132223121 is a deficient number, since it is larger than the sum of its proper divisors (44043119).

20132223121 is a wasteful number, since it uses less digits than its factorization.

20132223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20855.

The product of its (nonzero) digits is 288, while the sum is 19.

Subtracting from 20132223121 its sum of digits (19), we obtain a palindrome (20132223102).

Adding to 20132223121 its reverse (12132223102), we get a palindrome (32264446223).

It can be divided in two parts, 20132 and 223121, that added together give a triangular number (243253 = T₆₉₇).

The spelling of 20132223121 in words is "twenty billion, one hundred thirty-two million, two hundred twenty-three thousand, one hundred twenty-one".