10123323321020 has 384 divisors, whose sum is σ = 27800083046400. Its totient is φ = 3006895592448.

The previous prime is 10123323321019. The next prime is 10123323321101. The reversal of 10123323321020 is 2012332332101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2513860247 + ... + 2513864273.

It is an arithmetic number, because the mean of its divisors is an integer number (72396049600).

Almost surely, 2^{10123323321020} is an apocalyptic number.

10123323321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10123323321020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13900041523200).

10123323321020 is an abundant number, since it is smaller than the sum of its proper divisors (17676759725380).

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

10123323321020 is a wasteful number, since it uses less digits than its factorization.

10123323321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737 (or 4735 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 10123323321020 its reverse (2012332332101), we get a palindrome (12135655653121).

The spelling of 10123323321020 in words is "ten trillion, one hundred twenty-three billion, three hundred twenty-three million, three hundred twenty-one thousand, twenty".