903042730215220 has 288 divisors, whose sum is σ = 2301346117324800. Its totient is φ = 296416353429504.

The previous prime is 903042730215163. The next prime is 903042730215221. The reversal of 903042730215220 is 22512037240309.

It is a super-2 number, since 2×903042730215220² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (903042730215221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6449820576 + ... + 6449960584.

It is an arithmetic number, because the mean of its divisors is an integer number (7990785129600).

Almost surely, 2^{903042730215220} 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 903042730215220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150673058662400).

903042730215220 is an abundant number, since it is smaller than the sum of its proper divisors (1398303387109580).

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

903042730215220 is a wasteful number, since it uses less digits than its factorization.

903042730215220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141975 (or 141966 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

Adding to 903042730215220 its reverse (22512037240309), we get a palindrome (925554767455529).

The spelling of 903042730215220 in words is "nine hundred three trillion, forty-two billion, seven hundred thirty million, two hundred fifteen thousand, two hundred twenty".