101240851 has 2 divisors, whose sum is σ = 101240852. Its totient is φ = 101240850.

The previous prime is 101240837. The next prime is 101240869. The reversal of 101240851 is 158042101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101240851 - 2⁹ = 101240339 is a prime.

It is a super-2 number, since 2×101240851² = 20499419822408402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101240801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50620425 + 50620426.

It is an arithmetic number, because the mean of its divisors is an integer number (50620426).

Almost surely, 2^101240851 is an apocalyptic number.

101240851 is a deficient number, since it is larger than the sum of its proper divisors (1).

101240851 is an equidigital number, since it uses as much as digits as its factorization.

101240851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 101240851 is about 10061.8512710137. The cubic root of 101240851 is about 466.0708369170.

Adding to 101240851 its reverse (158042101), we get a palindrome (259282952).

The spelling of 101240851 in words is "one hundred one million, two hundred forty thousand, eight hundred fifty-one".