403243301020 has 96 divisors (see below), whose sum is σ = 999605698560. Its totient is φ = 133714264320.

The previous prime is 403243301011. The next prime is 403243301053. The reversal of 403243301020 is 20103342304.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 403243300982 and 403243301000.

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, 7389877 + ... + 7444243.

It is an arithmetic number, because the mean of its divisors is an integer number (10412559360).

Almost surely, 2^403243301020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403243301020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499802849280).

403243301020 is an abundant number, since it is smaller than the sum of its proper divisors (596362397540).

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

403243301020 is a wasteful number, since it uses less digits than its factorization.

403243301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56123 (or 56121 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 403243301020 its reverse (20103342304), we get a palindrome (423346643324).

The spelling of 403243301020 in words is "four hundred three billion, two hundred forty-three million, three hundred one thousand, twenty".