131651520343400 has 96 divisors (see below), whose sum is σ = 317619535780800. Its totient is φ = 50711492697600.

The previous prime is 131651520343333. The next prime is 131651520343403. The reversal of 131651520343400 is 4343025156131.

It is not an unprimeable number, because it can be changed into a prime (131651520343403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107194445 + ... + 108415644.

It is an arithmetic number, because the mean of its divisors is an integer number (3308536831050).

Almost surely, 2^{131651520343400} is an apocalyptic number.

131651520343400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131651520343400 is an abundant number, since it is smaller than the sum of its proper divisors (185968015437400).

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

131651520343400 is a wasteful number, since it uses less digits than its factorization.

131651520343400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215610219 (or 215610210 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 131651520343400 its reverse (4343025156131), we get a palindrome (135994545499531).

The spelling of 131651520343400 in words is "one hundred thirty-one trillion, six hundred fifty-one billion, five hundred twenty million, three hundred forty-three thousand, four hundred".