2001020111113 has 2 divisors, whose sum is σ = 2001020111114. Its totient is φ = 2001020111112.

The previous prime is 2001020111093. The next prime is 2001020111147. The reversal of 2001020111113 is 3111110201002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1665782585104 + 335237526009 = 1290652^2 + 578997^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001020111113 - 2²¹ = 2001018013961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001020111093 and 2001020111102.

It is not a weakly prime, because it can be changed into another prime (2001020111213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000510055556 + 1000510055557.

It is an arithmetic number, because the mean of its divisors is an integer number (1000510055557).

Almost surely, 2^{2001020111113} is an apocalyptic number.

It is an amenable number.

2001020111113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001020111113 is an equidigital number, since it uses as much as digits as its factorization.

2001020111113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 2001020111113 its reverse (3111110201002), we get a palindrome (5112130312115).

The spelling of 2001020111113 in words is "two trillion, one billion, twenty million, one hundred eleven thousand, one hundred thirteen".