131020421312 has 168 divisors, whose sum is σ = 306069309120. Its totient is φ = 55034726400.

The previous prime is 131020421297. The next prime is 131020421339. The reversal of 131020421312 is 213124020131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22482143 + ... + 22487969.

Almost surely, 2^131020421312 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 131020421312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153034654560).

131020421312 is an abundant number, since it is smaller than the sum of its proper divisors (175048887808).

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

131020421312 is a wasteful number, since it uses less digits than its factorization.

131020421312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5951 (or 5900 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131020421312 its reverse (213124020131), we get a palindrome (344144441443).

The spelling of 131020421312 in words is "one hundred thirty-one billion, twenty million, four hundred twenty-one thousand, three hundred twelve".