131121653351478 has 16 divisors (see below), whose sum is σ = 264245164007616. Its totient is φ = 43373574899720.

The previous prime is 131121653351477. The next prime is 131121653351527. The reversal of 131121653351478 is 874153356121131.

It is a self number, because there is not a number n which added to its sum of digits gives 131121653351478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121653351471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 83410720176 + ... + 83410721747.

It is an arithmetic number, because the mean of its divisors is an integer number (16515322750476).

Almost surely, 2^{131121653351478} is an apocalyptic number.

131121653351478 is an abundant number, since it is smaller than the sum of its proper divisors (133123510656138).

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

131121653351478 is a wasteful number, since it uses less digits than its factorization.

131121653351478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166821442059.

The product of its digits is 1814400, while the sum is 51.

The spelling of 131121653351478 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, six hundred fifty-three million, three hundred fifty-one thousand, four hundred seventy-eight".