131433385550 has 12 divisors (see below), whose sum is σ = 244466097216. Its totient is φ = 52573354200.

The previous prime is 131433385511. The next prime is 131433385553. The reversal of 131433385550 is 55583334131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131433385498 and 131433385507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131433385553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1314333806 + ... + 1314333905.

It is an arithmetic number, because the mean of its divisors is an integer number (20372174768).

Almost surely, 2^131433385550 is an apocalyptic number.

131433385550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131433385550 is a deficient number, since it is larger than the sum of its proper divisors (113032711666).

131433385550 is a wasteful number, since it uses less digits than its factorization.

131433385550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628667723 (or 2628667718 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 131433385550 in words is "one hundred thirty-one billion, four hundred thirty-three million, three hundred eighty-five thousand, five hundred fifty".