131112131 has 2 divisors, whose sum is σ = 131112132. Its totient is φ = 131112130.

The previous prime is 131112097. The next prime is 131112139. The reversal of 131112131 is 131211131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131112131 - 2¹⁰ = 131111107 is a prime.

It is a super-2 number, since 2×131112131² = 34380781790722322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131112139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65556065 + 65556066.

It is an arithmetic number, because the mean of its divisors is an integer number (65556066).

Almost surely, 2^131112131 is an apocalyptic number.

131112131 is a deficient number, since it is larger than the sum of its proper divisors (1).

131112131 is an equidigital number, since it uses as much as digits as its factorization.

131112131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18, while the sum is 14.

The square root of 131112131 is about 11450.4205599620. The cubic root of 131112131 is about 508.0201737809.

Adding to 131112131 its reverse (131211131), we get a palindrome (262323262).

The spelling of 131112131 in words is "one hundred thirty-one million, one hundred twelve thousand, one hundred thirty-one".