131405034152550 has 48 divisors (see below), whose sum is σ = 325909008827712. Its totient is φ = 35038705437600.

The previous prime is 131405034152531. The next prime is 131405034152551. The reversal of 131405034152550 is 55251430504131.

It is a junction number, because it is equal to n+sod(n) for n = 131405034152499 and 131405034152508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131405034152551) 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, 30962244 + ... + 34949543.

It is an arithmetic number, because the mean of its divisors is an integer number (6789771017244).

Almost surely, 2^{131405034152550} is an apocalyptic number.

131405034152550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131405034152550 is an abundant number, since it is smaller than the sum of its proper divisors (194503974675162).

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

131405034152550 is a wasteful number, since it uses less digits than its factorization.

131405034152550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65925093 (or 65925088 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 131405034152550 its reverse (55251430504131), we get a palindrome (186656464656681).

The spelling of 131405034152550 in words is "one hundred thirty-one trillion, four hundred five billion, thirty-four million, one hundred fifty-two thousand, five hundred fifty".