101010001 has 4 divisors (see below), whose sum is σ = 101335104. Its totient is φ = 100684900.

The previous prime is 101009983. The next prime is 101010031. The reversal of 101010001 is 100010101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100010101 = 89 ⋅1123709.

It is a cyclic number.

It is not a de Polignac number, because 101010001 - 2¹⁹ = 100485713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101010031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162085 + ... + 162706.

It is an arithmetic number, because the mean of its divisors is an integer number (25333776).

Almost surely, 2^101010001 is an apocalyptic number.

It is an amenable number.

101010001 is a deficient number, since it is larger than the sum of its proper divisors (325103).

101010001 is an equidigital number, since it uses as much as digits as its factorization.

101010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325102.

The product of its (nonzero) digits is 1, while the sum is 4.

The square root of 101010001 is about 10050.3731771512. The cubic root of 101010001 is about 465.7163214784.

Adding to 101010001 its reverse (100010101), we get a palindrome (201020102).

It can be divided in two parts, 1010 and 10001, that added together give a palindrome (11011).

The spelling of 101010001 in words is "one hundred one million, ten thousand, one".