63231254020 has 96 divisors (see below), whose sum is σ = 148478230656. Its totient is φ = 22425216000.

The previous prime is 63231253999. The next prime is 63231254029. The reversal of 63231254020 is 2045213236.

It is a self number, because there is not a number n which added to its sum of digits gives 63231254020.

It is not an unprimeable number, because it can be changed into a prime (63231254029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1467504 + ... + 1509976.

It is an arithmetic number, because the mean of its divisors is an integer number (1546648236).

Almost surely, 2^63231254020 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 63231254020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74239115328).

63231254020 is an abundant number, since it is smaller than the sum of its proper divisors (85246976636).

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

63231254020 is a wasteful number, since it uses less digits than its factorization.

63231254020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42661 (or 42659 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 63231254020 its reverse (2045213236), we get a palindrome (65276467256).

The spelling of 63231254020 in words is "sixty-three billion, two hundred thirty-one million, two hundred fifty-four thousand, twenty".