106240031 has 2 divisors, whose sum is σ = 106240032. Its totient is φ = 106240030.

The previous prime is 106240027. The next prime is 106240049. The reversal of 106240031 is 130042601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106240031 - 2² = 106240027 is a prime.

It is a super-2 number, since 2×106240031² = 22573888373761922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 106239991 and 106240009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106240051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53120015 + 53120016.

It is an arithmetic number, because the mean of its divisors is an integer number (53120016).

Almost surely, 2^106240031 is an apocalyptic number.

106240031 is a deficient number, since it is larger than the sum of its proper divisors (1).

106240031 is an equidigital number, since it uses as much as digits as its factorization.

106240031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 106240031 is about 10307.2804851716. The cubic root of 106240031 is about 473.6193050833.

Adding to 106240031 its reverse (130042601), we get a palindrome (236282632).

The spelling of 106240031 in words is "one hundred six million, two hundred forty thousand, thirty-one".