131402431530550 has 96 divisors (see below), whose sum is σ = 251557164712800. Its totient is φ = 51046165632000.

The previous prime is 131402431530547. The next prime is 131402431530569. The reversal of 131402431530550 is 55035134204131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 309859660 + ... + 310283440.

It is an arithmetic number, because the mean of its divisors is an integer number (2620387132425).

Almost surely, 2^{131402431530550} is an apocalyptic number.

131402431530550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131402431530550 is a deficient number, since it is larger than the sum of its proper divisors (120154733182250).

131402431530550 is a wasteful number, since it uses less digits than its factorization.

131402431530550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425122 (or 425117 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 131402431530550 its reverse (55035134204131), we get a palindrome (186437565734681).

The spelling of 131402431530550 in words is "one hundred thirty-one trillion, four hundred two billion, four hundred thirty-one million, five hundred thirty thousand, five hundred fifty".