131115011 has 2 divisors, whose sum is σ = 131115012. Its totient is φ = 131115010.

The previous prime is 131114993. The next prime is 131115053. The reversal of 131115011 is 110511131.

It is a weak prime.

It is an emirp because it is prime and its reverse (110511131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131115011 - 2²⁶ = 64006147 is a prime.

It is a super-2 number, since 2×131115011² = 34382292219060242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131115091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65557505 + 65557506.

It is an arithmetic number, because the mean of its divisors is an integer number (65557506).

Almost surely, 2^131115011 is an apocalyptic number.

131115011 is a deficient number, since it is larger than the sum of its proper divisors (1).

131115011 is an equidigital number, since it uses as much as digits as its factorization.

131115011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15, while the sum is 14.

The square root of 131115011 is about 11450.5463188444. The cubic root of 131115011 is about 508.0238934656.

Adding to 131115011 its reverse (110511131), we get a palindrome (241626142).

The spelling of 131115011 in words is "one hundred thirty-one million, one hundred fifteen thousand, eleven".