131301320243121 has 48 divisors (see below), whose sum is σ = 219417437715840. Its totient is φ = 74106911646720.

The previous prime is 131301320243087. The next prime is 131301320243213. The reversal of 131301320243121 is 121342023103131.

131301320243121 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 0 + 1 + 3 + 202 + 431 + 21 = 666.

It is not a de Polignac number, because 131301320243121 - 2¹¹ = 131301320241073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131301320243221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17903425 + ... + 24148193.

It is an arithmetic number, because the mean of its divisors is an integer number (4571196619080).

Almost surely, 2^{131301320243121} is an apocalyptic number.

It is an amenable number.

131301320243121 is a deficient number, since it is larger than the sum of its proper divisors (88116117472719).

131301320243121 is a wasteful number, since it uses less digits than its factorization.

131301320243121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6248886 (or 6248883 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 131301320243121 its reverse (121342023103131), we get a palindrome (252643343346252).

The spelling of 131301320243121 in words is "one hundred thirty-one trillion, three hundred one billion, three hundred twenty million, two hundred forty-three thousand, one hundred twenty-one".