321131425050 has 144 divisors (see below), whose sum is σ = 910014300000. Its totient is φ = 80964282240.

The previous prime is 321131425019. The next prime is 321131425081. The reversal of 321131425050 is 50524131123.

321131425050 is a `hidden beast` number, since 3 + 2 + 1 + 13 + 142 + 505 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (321131425019) and next prime (321131425081).

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 71 ways as a sum of consecutive naturals, for example, 4228816 + ... + 4304084.

It is an arithmetic number, because the mean of its divisors is an integer number (6319543750).

Almost surely, 2^321131425050 is an apocalyptic number.

321131425050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 321131425050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455007150000).

321131425050 is an abundant number, since it is smaller than the sum of its proper divisors (588882874950).

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

321131425050 is a wasteful number, since it uses less digits than its factorization.

321131425050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75805 (or 75797 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 321131425050 its reverse (50524131123), we get a palindrome (371655556173).

The spelling of 321131425050 in words is "three hundred twenty-one billion, one hundred thirty-one million, four hundred twenty-five thousand, fifty".