131111325421005 has 16 divisors (see below), whose sum is σ = 209813658359040. Its totient is φ = 69914194329408.

The previous prime is 131111325421003. The next prime is 131111325421073. The reversal of 131111325421005 is 500124523111131.

It is not a de Polignac number, because 131111325421005 - 2¹ = 131111325421003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131111325421003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740276950 + ... + 740454039.

It is an arithmetic number, because the mean of its divisors is an integer number (13113353647440).

Almost surely, 2^{131111325421005} is an apocalyptic number.

131111325421005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131111325421005 is a deficient number, since it is larger than the sum of its proper divisors (78702332938035).

131111325421005 is a wasteful number, since it uses less digits than its factorization.

131111325421005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480736900.

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 131111325421005 its reverse (500124523111131), we get a palindrome (631235848532136).

The spelling of 131111325421005 in words is "one hundred thirty-one trillion, one hundred eleven billion, three hundred twenty-five million, four hundred twenty-one thousand, five".