631104132420 has 288 divisors, whose sum is σ = 2016762209280. Its totient is φ = 159524951040.

The previous prime is 631104132413. The next prime is 631104132431. The reversal of 631104132420 is 24231401136.

It is a happy number.

631104132420 is a `hidden beast` number, since 6 + 3 + 1 + 1 + 0 + 413 + 242 + 0 = 666.

631104132420 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 223873771 + ... + 223876589.

It is an arithmetic number, because the mean of its divisors is an integer number (7002646560).

Almost surely, 2^631104132420 is an apocalyptic number.

631104132420 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 631104132420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008381104640).

631104132420 is an abundant number, since it is smaller than the sum of its proper divisors (1385658076860).

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

631104132420 is a wasteful number, since it uses less digits than its factorization.

631104132420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675 (or 3670 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 631104132420 its reverse (24231401136), we get a palindrome (655335533556).

The spelling of 631104132420 in words is "six hundred thirty-one billion, one hundred four million, one hundred thirty-two thousand, four hundred twenty".