131432131 has 2 divisors, whose sum is σ = 131432132. Its totient is φ = 131432130.

The previous prime is 131432129. The next prime is 131432153. The reversal of 131432131 is 131234131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131432131 - 2¹ = 131432129 is a prime.

It is a super-2 number, since 2×131432131² = 34548810118402322, which contains 22 as substring.

Together with 131432129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 131432099 and 131432108.

It is not a weakly prime, because it can be changed into another prime (131442131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65716065 + 65716066.

It is an arithmetic number, because the mean of its divisors is an integer number (65716066).

Almost surely, 2^131432131 is an apocalyptic number.

131432131 is a deficient number, since it is larger than the sum of its proper divisors (1).

131432131 is an equidigital number, since it uses as much as digits as its factorization.

131432131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 131432131 is about 11464.3853302303. The cubic root of 131432131 is about 508.4331393267.

Adding to 131432131 its reverse (131234131), we get a palindrome (262666262).

The spelling of 131432131 in words is "one hundred thirty-one million, four hundred thirty-two thousand, one hundred thirty-one".