212431011242 has 16 divisors (see below), whose sum is σ = 322815955392. Its totient is φ = 104828314560.

The previous prime is 212431011227. The next prime is 212431011313. The reversal of 212431011242 is 242110134212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492734 + ... + 817097.

It is an arithmetic number, because the mean of its divisors is an integer number (20175997212).

Almost surely, 2^212431011242 is an apocalyptic number.

212431011242 is a deficient number, since it is larger than the sum of its proper divisors (110384944150).

212431011242 is a wasteful number, since it uses less digits than its factorization.

212431011242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310893.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 212431011242 its reverse (242110134212), we get a palindrome (454541145454).

The spelling of 212431011242 in words is "two hundred twelve billion, four hundred thirty-one million, eleven thousand, two hundred forty-two".