2123111332011 has 32 divisors (see below), whose sum is σ = 3007432627200. Its totient is φ = 1327666152960.

The previous prime is 2123111331947. The next prime is 2123111332031. The reversal of 2123111332011 is 1102331113212.

It is not a de Polignac number, because 2123111332011 - 2⁶ = 2123111331947 is a prime.

It is a super-2 number, since 2×2123111332011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123111332031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21830430 + ... + 21927468.

It is an arithmetic number, because the mean of its divisors is an integer number (93982269600).

Almost surely, 2^{2123111332011} is an apocalyptic number.

2123111332011 is a deficient number, since it is larger than the sum of its proper divisors (884321295189).

2123111332011 is a wasteful number, since it uses less digits than its factorization.

2123111332011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98499.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2123111332011 its reverse (1102331113212), we get a palindrome (3225442445223).

The spelling of 2123111332011 in words is "two trillion, one hundred twenty-three billion, one hundred eleven million, three hundred thirty-two thousand, eleven".