211020113310001 has 4 divisors (see below), whose sum is σ = 211781918773492. Its totient is φ = 210258307846512.

The previous prime is 211020113309947. The next prime is 211020113310023. The reversal of 211020113310001 is 100013311020112.

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 26914835578401 + 184105277731600 = 5187951^2 + 13568540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211020113310001 is a prime.

It is a super-2 number, since 2×211020113310001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211020113310091) 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, 380902731330 + ... + 380902731883.

It is an arithmetic number, because the mean of its divisors is an integer number (52945479693373).

Almost surely, 2^{211020113310001} is an apocalyptic number.

It is an amenable number.

211020113310001 is a deficient number, since it is larger than the sum of its proper divisors (761805463491).

211020113310001 is an equidigital number, since it uses as much as digits as its factorization.

211020113310001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761805463490.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 211020113310001 its reverse (100013311020112), we get a palindrome (311033424330113).

The spelling of 211020113310001 in words is "two hundred eleven trillion, twenty billion, one hundred thirteen million, three hundred ten thousand, one".