131018707 has 2 divisors, whose sum is σ = 131018708. Its totient is φ = 131018706.

The previous prime is 131018689. The next prime is 131018729. The reversal of 131018707 is 707810131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131018707 is a prime.

It is not a weakly prime, because it can be changed into another prime (131018777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65509353 + 65509354.

It is an arithmetic number, because the mean of its divisors is an integer number (65509354).

Almost surely, 2^131018707 is an apocalyptic number.

131018707 is a deficient number, since it is larger than the sum of its proper divisors (1).

131018707 is an equidigital number, since it uses as much as digits as its factorization.

131018707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 131018707 is about 11446.3403321760. The cubic root of 131018707 is about 507.8994817857.

Adding to 131018707 its reverse (707810131), we get a palindrome (838828838).

The spelling of 131018707 in words is "one hundred thirty-one million, eighteen thousand, seven hundred seven".