131201141213538 has 72 divisors (see below), whose sum is σ = 312638764838400. Its totient is φ = 39735317849040.

The previous prime is 131201141213537. The next prime is 131201141213551. The reversal of 131201141213538 is 835312141102131.

131201141213538 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 114 + 1 + 2 + 1 + 3 + 538 = 666.

It is not an unprimeable number, because it can be changed into a prime (131201141213537) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13292058 + ... + 20954261.

It is an arithmetic number, because the mean of its divisors is an integer number (4342205067200).

Almost surely, 2^{131201141213538} is an apocalyptic number.

131201141213538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131201141213538 is an abundant number, since it is smaller than the sum of its proper divisors (181437623624862).

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

131201141213538 is a wasteful number, since it uses less digits than its factorization.

131201141213538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34248108 (or 34248094 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

Adding to 131201141213538 its reverse (835312141102131), we get a palindrome (966513282315669).

The spelling of 131201141213538 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred forty-one million, two hundred thirteen thousand, five hundred thirty-eight".