131021444402145 has 96 divisors (see below), whose sum is σ = 248230258698240. Its totient is φ = 63402350474880.

The previous prime is 131021444402117. The next prime is 131021444402159. The reversal of 131021444402145 is 541204444120131.

131021444402145 is a `hidden beast` number, since 1 + 3 + 10 + 2 + 144 + 440 + 21 + 45 = 666.

It is not a de Polignac number, because 131021444402145 - 2⁹ = 131021444401633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1867990486 + ... + 1868060624.

It is an arithmetic number, because the mean of its divisors is an integer number (2585731861440).

Almost surely, 2^{131021444402145} is an apocalyptic number.

131021444402145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131021444402145 is a deficient number, since it is larger than the sum of its proper divisors (117208814296095).

131021444402145 is a wasteful number, since it uses less digits than its factorization.

131021444402145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77427 (or 77424 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

Adding to 131021444402145 its reverse (541204444120131), we get a palindrome (672225888522276).

The spelling of 131021444402145 in words is "one hundred thirty-one trillion, twenty-one billion, four hundred forty-four million, four hundred two thousand, one hundred forty-five".