131727121427 has 64 divisors (see below), whose sum is σ = 157456493568. Its totient is φ = 108972864000.

The previous prime is 131727121397. The next prime is 131727121441. The reversal of 131727121427 is 724121727131.

It is a happy number.

It is not a de Polignac number, because 131727121427 - 2²² = 131722927123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131727121027) 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 63 ways as a sum of consecutive naturals, for example, 112490552 + ... + 112491722.

It is an arithmetic number, because the mean of its divisors is an integer number (2460257712).

Almost surely, 2^131727121427 is an apocalyptic number.

131727121427 is a deficient number, since it is larger than the sum of its proper divisors (25729372141).

131727121427 is a wasteful number, since it uses less digits than its factorization.

131727121427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500.

The product of its digits is 32928, while the sum is 38.

Adding to 131727121427 its reverse (724121727131), we get a palindrome (855848848558).

The spelling of 131727121427 in words is "one hundred thirty-one billion, seven hundred twenty-seven million, one hundred twenty-one thousand, four hundred twenty-seven".