101718131 has 2 divisors, whose sum is σ = 101718132. Its totient is φ = 101718130.

The previous prime is 101718119. The next prime is 101718139. The reversal of 101718131 is 131817101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101718131 is a prime.

It is a super-2 number, since 2×101718131² = 20693156348266322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101718097 and 101718106.

It is not a weakly prime, because it can be changed into another prime (101718139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50859065 + 50859066.

It is an arithmetic number, because the mean of its divisors is an integer number (50859066).

Almost surely, 2^101718131 is an apocalyptic number.

101718131 is a deficient number, since it is larger than the sum of its proper divisors (1).

101718131 is an equidigital number, since it uses as much as digits as its factorization.

101718131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 23.

The square root of 101718131 is about 10085.5406895218. The cubic root of 101718131 is about 466.8020886459.

The spelling of 101718131 in words is "one hundred one million, seven hundred eighteen thousand, one hundred thirty-one".