2111021001113 has 4 divisors (see below), whose sum is σ = 2111257115748. Its totient is φ = 2110784886480.

The previous prime is 2111021001083. The next prime is 2111021001137. The reversal of 2111021001113 is 3111001201112.

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 1226042423824 + 884978577289 = 1107268^2 + 940733^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111021001113 - 2¹⁶ = 2111020935577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111021001143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118043906 + ... + 118061787.

It is an arithmetic number, because the mean of its divisors is an integer number (527814278937).

Almost surely, 2^{2111021001113} is an apocalyptic number.

It is an amenable number.

2111021001113 is a deficient number, since it is larger than the sum of its proper divisors (236114635).

2111021001113 is an equidigital number, since it uses as much as digits as its factorization.

2111021001113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236114634.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 2111021001113 its reverse (3111001201112), we get a palindrome (5222022202225).

The spelling of 2111021001113 in words is "two trillion, one hundred eleven billion, twenty-one million, one thousand, one hundred thirteen".