131433211434320 has 80 divisors (see below), whose sum is σ = 306407080566720. Its totient is φ = 52431389337600.

The previous prime is 131433211434319. The next prime is 131433211434323. The reversal of 131433211434320 is 23434112334131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131433211434323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535965335 + ... + 536210505.

It is an arithmetic number, because the mean of its divisors is an integer number (3830088507084).

Almost surely, 2^{131433211434320} is an apocalyptic number.

131433211434320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131433211434320 is an abundant number, since it is smaller than the sum of its proper divisors (174973869132400).

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

131433211434320 is a wasteful number, since it uses less digits than its factorization.

131433211434320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263244 (or 263238 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 131433211434320 its reverse (23434112334131), we get a palindrome (154867323768451).

The spelling of 131433211434320 in words is "one hundred thirty-one trillion, four hundred thirty-three billion, two hundred eleven million, four hundred thirty-four thousand, three hundred twenty".