101020868 has 24 divisors (see below), whose sum is σ = 201586392. Its totient is φ = 43881984.

The previous prime is 101020867. The next prime is 101020879. The reversal of 101020868 is 868020101.

It can be written as a sum of positive squares in 4 ways, for example, as 16711744 + 84309124 = 4088^2 + 9182^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (101020861) 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 in 7 ways as a sum of consecutive naturals, for example, 56255 + ... + 58022.

It is an arithmetic number, because the mean of its divisors is an integer number (8399433).

Almost surely, 2^101020868 is an apocalyptic number.

It is an amenable number.

101020868 is a deficient number, since it is larger than the sum of its proper divisors (100565524).

101020868 is a wasteful number, since it uses less digits than its factorization.

101020868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114311 (or 114309 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 101020868 is about 10050.9137893029. The cubic root of 101020868 is about 465.7330219956.

Adding to 101020868 its reverse (868020101), we get a palindrome (969040969).

The spelling of 101020868 in words is "one hundred one million, twenty thousand, eight hundred sixty-eight".