20123323023102 has 64 divisors (see below), whose sum is σ = 44099521320960. Its totient is φ = 6083758260864.

The previous prime is 20123323022977. The next prime is 20123323023109. The reversal of 20123323023102 is 20132032332102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123323023109) 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, 7971603 + ... + 10187889.

It is an arithmetic number, because the mean of its divisors is an integer number (689055020640).

Almost surely, 2^{20123323023102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20123323023102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22049760660480).

20123323023102 is an abundant number, since it is smaller than the sum of its proper divisors (23976198297858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123323023102 is a wasteful number, since it uses less digits than its factorization.

20123323023102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218337.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20123323023102 its reverse (20132032332102), we get a palindrome (40255355355204).

The spelling of 20123323023102 in words is "twenty trillion, one hundred twenty-three billion, three hundred twenty-three million, twenty-three thousand, one hundred two".