101013001 has 4 divisors (see below), whose sum is σ = 101331972. Its totient is φ = 100694032.

The previous prime is 101012999. The next prime is 101013013. The reversal of 101013001 is 100310101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53071225 + 47941776 = 7285^2 + 6924^2 .

It is a cyclic number.

It is not a de Polignac number, because 101013001 - 2¹ = 101012999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101013091) 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, 159010 + ... + 159643.

It is an arithmetic number, because the mean of its divisors is an integer number (25332993).

Almost surely, 2^101013001 is an apocalyptic number.

It is an amenable number.

101013001 is a deficient number, since it is larger than the sum of its proper divisors (318971).

101013001 is an equidigital number, since it uses as much as digits as its factorization.

101013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318970.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 101013001 is about 10050.5224242325. The cubic root of 101013001 is about 465.7209320289.

Adding to 101013001 its reverse (100310101), we get a palindrome (201323102).

The spelling of 101013001 in words is "one hundred one million, thirteen thousand, one".