101320002001 has 4 divisors (see below), whose sum is σ = 103791221604. Its totient is φ = 98848782400.

The previous prime is 101320001963. The next prime is 101320002011. The reversal of 101320002001 is 100200023101.

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 29782475776 + 71537526225 = 172576^2 + 267465^2 .

It is a cyclic number.

It is not a de Polignac number, because 101320002001 - 2¹³ = 101319993809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101320002011) 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, 1235609740 + ... + 1235609821.

It is an arithmetic number, because the mean of its divisors is an integer number (25947805401).

Almost surely, 2^101320002001 is an apocalyptic number.

It is an amenable number.

101320002001 is a deficient number, since it is larger than the sum of its proper divisors (2471219603).

101320002001 is an equidigital number, since it uses as much as digits as its factorization.

101320002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471219602.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 101320002001 its reverse (100200023101), we get a palindrome (201520025102).

The spelling of 101320002001 in words is "one hundred one billion, three hundred twenty million, two thousand, one".