63303135420 has 192 divisors, whose sum is σ = 207581552640. Its totient is φ = 14112306432.

The previous prime is 63303135391. The next prime is 63303135421. The reversal of 63303135420 is 2453130336.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63303135421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14861251 + ... + 14865509.

It is an arithmetic number, because the mean of its divisors is an integer number (1081153920).

Almost surely, 2^63303135420 is an apocalyptic number.

63303135420 is a gapful number since it is divisible by the number (60) 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 63303135420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103790776320).

63303135420 is an abundant number, since it is smaller than the sum of its proper divisors (144278417220).

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

63303135420 is a wasteful number, since it uses less digits than its factorization.

63303135420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144 (or 5142 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 63303135420 its reverse (2453130336), we get a palindrome (65756265756).

The spelling of 63303135420 in words is "sixty-three billion, three hundred three million, one hundred thirty-five thousand, four hundred twenty".