131201443131402 has 128 divisors (see below), whose sum is σ = 327853447741440. Its totient is φ = 34134522439680.

The previous prime is 131201443131391. The next prime is 131201443131443. The reversal of 131201443131402 is 204131344102131.

It is a self number, because there is not a number n which added to its sum of digits gives 131201443131402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89067099 + ... + 90528177.

It is an arithmetic number, because the mean of its divisors is an integer number (2561355060480).

Almost surely, 2^{131201443131402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131201443131402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163926723870720).

131201443131402 is an abundant number, since it is smaller than the sum of its proper divisors (196652004610038).

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

131201443131402 is a wasteful number, since it uses less digits than its factorization.

131201443131402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465196.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131201443131402 its reverse (204131344102131), we get a palindrome (335332787233533).

The spelling of 131201443131402 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred forty-three million, one hundred thirty-one thousand, four hundred two".