131332663420 has 96 divisors (see below), whose sum is σ = 318380654592. Its totient is φ = 44575308288.

The previous prime is 131332663411. The next prime is 131332663421. The reversal of 131332663420 is 24366233131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131332663421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8295352 + ... + 8311168.

It is an arithmetic number, because the mean of its divisors is an integer number (3316465152).

Almost surely, 2^131332663420 is an apocalyptic number.

131332663420 is a gapful number since it is divisible by the number (10) 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 131332663420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159190327296).

131332663420 is an abundant number, since it is smaller than the sum of its proper divisors (187047991172).

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

131332663420 is a wasteful number, since it uses less digits than its factorization.

131332663420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16427 (or 16425 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 34.

Adding to 131332663420 its reverse (24366233131), we get a palindrome (155698896551).

The spelling of 131332663420 in words is "one hundred thirty-one billion, three hundred thirty-two million, six hundred sixty-three thousand, four hundred twenty".