20130122021223 has 8 divisors (see below), whose sum is σ = 26840186514288. Its totient is φ = 13420069437824.

The previous prime is 20130122021221. The next prime is 20130122021231. The reversal of 20130122021223 is 32212022103102.

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 20130122021223 - 2¹ = 20130122021221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20130122021223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130122021221) 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, 2305615 + ... + 6751007.

It is an arithmetic number, because the mean of its divisors is an integer number (3355023314286).

Almost surely, 2^{20130122021223} is an apocalyptic number.

20130122021223 is a deficient number, since it is larger than the sum of its proper divisors (6710064493065).

20130122021223 is a wasteful number, since it uses less digits than its factorization.

20130122021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954833.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20130122021223 its reverse (32212022103102), we get a palindrome (52342144124325).

The spelling of 20130122021223 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-two million, twenty-one thousand, two hundred twenty-three".