20010322121223 has 32 divisors (see below), whose sum is σ = 31238544056832. Its totient is φ = 11154537676800.

The previous prime is 20010322121201. The next prime is 20010322121311. The reversal of 20010322121223 is 32212122301002.

It is not a de Polignac number, because 20010322121223 - 2¹² = 20010322117127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20010322121223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010322121623) 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, 8177668 + ... + 10338998.

It is an arithmetic number, because the mean of its divisors is an integer number (976204501776).

Almost surely, 2^{20010322121223} is an apocalyptic number.

20010322121223 is a deficient number, since it is larger than the sum of its proper divisors (11228221935609).

20010322121223 is a wasteful number, since it uses less digits than its factorization.

20010322121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172135.

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

Adding to 20010322121223 its reverse (32212122301002), we get a palindrome (52222444422225).

The spelling of 20010322121223 in words is "twenty trillion, ten billion, three hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-three".