2143235212011 has 6 divisors (see below), whose sum is σ = 3095784195140. Its totient is φ = 1428823474668.

The previous prime is 2143235211967. The next prime is 2143235212021. The reversal of 2143235212011 is 1102125323412.

It is a happy number.

2143235212011 is a `hidden beast` number, since 2 + 1 + 432 + 3 + 5 + 21 + 201 + 1 = 666.

It is not a de Polignac number, because 2143235212011 - 2²⁷ = 2143100994283 is a prime.

It is a super-2 number, since 2×2143235212011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143235212021) 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 5 ways as a sum of consecutive naturals, for example, 119068622881 + ... + 119068622898.

Almost surely, 2^{2143235212011} is an apocalyptic number.

2143235212011 is a deficient number, since it is larger than the sum of its proper divisors (952548983129).

2143235212011 is a wasteful number, since it uses less digits than its factorization.

2143235212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238137245785 (or 238137245782 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 2143235212011 in words is "two trillion, one hundred forty-three billion, two hundred thirty-five million, two hundred twelve thousand, eleven".