63501131120 has 80 divisors (see below), whose sum is σ = 169013224128. Its totient is φ = 21735475200.

The previous prime is 63501131093. The next prime is 63501131123. The reversal of 63501131120 is 2113110536.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63501131123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242222 + ... + 430898.

Almost surely, 2^63501131120 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 63501131120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84506612064).

63501131120 is an abundant number, since it is smaller than the sum of its proper divisors (105512093008).

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

63501131120 is a wasteful number, since it uses less digits than its factorization.

63501131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189298 (or 189292 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 63501131120 its reverse (2113110536), we get a palindrome (65614241656).

The spelling of 63501131120 in words is "sixty-three billion, five hundred one million, one hundred thirty-one thousand, one hundred twenty".