213111330124242 has 16 divisors (see below), whose sum is σ = 464970174816672. Its totient is φ = 64579190946720.

The previous prime is 213111330124157. The next prime is 213111330124307. The reversal of 213111330124242 is 242421033111312.

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, 1614479773603 + ... + 1614479773734.

It is an arithmetic number, because the mean of its divisors is an integer number (29060635926042).

Almost surely, 2^{213111330124242} is an apocalyptic number.

213111330124242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213111330124242 is an abundant number, since it is smaller than the sum of its proper divisors (251858844692430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213111330124242 is a wasteful number, since it uses less digits than its factorization.

213111330124242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228959547353.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 213111330124242 its reverse (242421033111312), we get a palindrome (455532363235554).

The spelling of 213111330124242 in words is "two hundred thirteen trillion, one hundred eleven billion, three hundred thirty million, one hundred twenty-four thousand, two hundred forty-two".