131433211111240 has 64 divisors (see below), whose sum is σ = 296615596408560. Its totient is φ = 52414921359360.

The previous prime is 131433211111199. The next prime is 131433211111249. The reversal of 131433211111240 is 42111112334131.

It can be written as a sum of positive squares in 8 ways, for example, as 38793240610084 + 92639970501156 = 6228422^2 + 9624966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131433211111199 and 131433211111208.

It is not an unprimeable number, because it can be changed into a prime (131433211111249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316208350 + ... + 316623730.

Almost surely, 2^{131433211111240} is an apocalyptic number.

131433211111240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131433211111240 is an abundant number, since it is smaller than the sum of its proper divisors (165182385297320).

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

131433211111240 is a wasteful number, since it uses less digits than its factorization.

131433211111240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439202 (or 439198 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 131433211111240 its reverse (42111112334131), we get a palindrome (173544323445371).

The spelling of 131433211111240 in words is "one hundred thirty-one trillion, four hundred thirty-three billion, two hundred eleven million, one hundred eleven thousand, two hundred forty".