2111302123211 has 16 divisors (see below), whose sum is σ = 2177464205664. Its totient is φ = 2045933481984.

The previous prime is 2111302123207. The next prime is 2111302123219. The reversal of 2111302123211 is 1123212031112.

It is a cyclic number.

It is not a de Polignac number, because 2111302123211 - 2² = 2111302123207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111302123219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9891431 + ... + 10102623.

It is an arithmetic number, because the mean of its divisors is an integer number (136091512854).

Almost surely, 2^{2111302123211} is an apocalyptic number.

2111302123211 is a deficient number, since it is larger than the sum of its proper divisors (66162082453).

2111302123211 is a wasteful number, since it uses less digits than its factorization.

2111302123211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213070.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2111302123211 its reverse (1123212031112), we get a palindrome (3234514154323).

The spelling of 2111302123211 in words is "two trillion, one hundred eleven billion, three hundred two million, one hundred twenty-three thousand, two hundred eleven".