131423011 has 2 divisors, whose sum is σ = 131423012. Its totient is φ = 131423010.

The previous prime is 131423009. The next prime is 131423023. The reversal of 131423011 is 110324131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131423011 - 2¹ = 131423009 is a prime.

It is a super-2 number, since 2×131423011² = 34544015640612242, which contains 22 as substring.

Together with 131423009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131423051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65711505 + 65711506.

It is an arithmetic number, because the mean of its divisors is an integer number (65711506).

Almost surely, 2^131423011 is an apocalyptic number.

131423011 is a deficient number, since it is larger than the sum of its proper divisors (1).

131423011 is an equidigital number, since it uses as much as digits as its factorization.

131423011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 131423011 is about 11463.9875697769. The cubic root of 131423011 is about 508.4213790936.

Adding to 131423011 its reverse (110324131), we get a palindrome (241747142).

The spelling of 131423011 in words is "one hundred thirty-one million, four hundred twenty-three thousand, eleven".