1423303110020 has 72 divisors (see below), whose sum is σ = 3288497751000. Its totient is φ = 517070456320.

The previous prime is 1423303109989. The next prime is 1423303110049. The reversal of 1423303110020 is 200113033241.

It can be written as a sum of positive squares in 4 ways, for example, as 158685909316 + 1264617200704 = 398354^2 + 1124552^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1423303109974 and 1423303110001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2258246 + ... + 2818914.

It is an arithmetic number, because the mean of its divisors is an integer number (45673579875).

Almost surely, 2^{1423303110020} is an apocalyptic number.

1423303110020 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 1423303110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644248875500).

1423303110020 is an abundant number, since it is smaller than the sum of its proper divisors (1865194640980).

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

1423303110020 is a wasteful number, since it uses less digits than its factorization.

1423303110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561749 (or 561736 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1423303110020 its reverse (200113033241), we get a palindrome (1623416143261).

The spelling of 1423303110020 in words is "one trillion, four hundred twenty-three billion, three hundred three million, one hundred ten thousand, twenty".