131000204031111 has 6 divisors (see below), whose sum is σ = 189222516933840. Its totient is φ = 87333469354068.

The previous prime is 131000204030953. The next prime is 131000204031133. The reversal of 131000204031111 is 111130402000131.

It is a happy number.

131000204031111 is a `hidden beast` number, since 1 + 310 + 0 + 0 + 2 + 0 + 40 + 311 + 1 + 1 = 666.

It is not a de Polignac number, because 131000204031111 - 2¹⁵ = 131000203998343 is a prime.

It is a super-2 number, since 2×131000204031111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000204031911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7277789112831 + ... + 7277789112848.

It is an arithmetic number, because the mean of its divisors is an integer number (31537086155640).

Almost surely, 2^{131000204031111} is an apocalyptic number.

131000204031111 is a deficient number, since it is larger than the sum of its proper divisors (58222312902729).

131000204031111 is a wasteful number, since it uses less digits than its factorization.

131000204031111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14555578225685 (or 14555578225682 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 131000204031111 its reverse (111130402000131), we get a palindrome (242130606031242).

The spelling of 131000204031111 in words is "one hundred thirty-one trillion, two hundred four million, thirty-one thousand, one hundred eleven".