101423321020 has 96 divisors (see below), whose sum is σ = 245785881600. Its totient is φ = 34436427264.

The previous prime is 101423320939. The next prime is 101423321033. The reversal of 101423321020 is 20123324101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7952769 + ... + 7965511.

It is an arithmetic number, because the mean of its divisors is an integer number (2560269600).

Almost surely, 2^101423321020 is an apocalyptic number.

101423321020 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 101423321020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122892940800).

101423321020 is an abundant number, since it is smaller than the sum of its proper divisors (144362560580).

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

101423321020 is a wasteful number, since it uses less digits than its factorization.

101423321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13307 (or 13305 counting only the distinct ones).

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

Adding to 101423321020 its reverse (20123324101), we get a palindrome (121546645121).

The spelling of 101423321020 in words is "one hundred one billion, four hundred twenty-three million, three hundred twenty-one thousand, twenty".