131433412240 has 80 divisors (see below), whose sum is σ = 334000997568. Its totient is φ = 47804917248.

The previous prime is 131433412223. The next prime is 131433412261. The reversal of 131433412240 is 42214334131.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 131433412199 and 131433412208.

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 15 ways as a sum of consecutive naturals, for example, 873442 + ... + 1012801.

Almost surely, 2^131433412240 is an apocalyptic number.

131433412240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131433412240 is an abundant number, since it is smaller than the sum of its proper divisors (202567585328).

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

131433412240 is a wasteful number, since it uses less digits than its factorization.

131433412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886336 (or 1886330 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131433412240 its reverse (42214334131), we get a palindrome (173647746371).

The spelling of 131433412240 in words is "one hundred thirty-one billion, four hundred thirty-three million, four hundred twelve thousand, two hundred forty".