212051310243 has 16 divisors (see below), whose sum is σ = 288315040896. Its totient is φ = 138597560640.

The previous prime is 212051310239. The next prime is 212051310259. The reversal of 212051310243 is 342013150212.

It is not a de Polignac number, because 212051310243 - 2² = 212051310239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212051310203) 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, 2457546 + ... + 2542367.

It is an arithmetic number, because the mean of its divisors is an integer number (18019690056).

Almost surely, 2^212051310243 is an apocalyptic number.

212051310243 is a deficient number, since it is larger than the sum of its proper divisors (76263730653).

212051310243 is a wasteful number, since it uses less digits than its factorization.

212051310243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000194.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 212051310243 its reverse (342013150212), we get a palindrome (554064460455).

The spelling of 212051310243 in words is "two hundred twelve billion, fifty-one million, three hundred ten thousand, two hundred forty-three".