213111112012342 has 16 divisors (see below), whose sum is σ = 326495780786880. Its totient is φ = 104279569726528.

The previous prime is 213111112012321. The next prime is 213111112012367. The reversal of 213111112012342 is 243210211111312.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 95046703 + ... + 97263034.

It is an arithmetic number, because the mean of its divisors is an integer number (20405986299180).

Almost surely, 2^{213111112012342} is an apocalyptic number.

213111112012342 is a deficient number, since it is larger than the sum of its proper divisors (113384668774538).

213111112012342 is a wasteful number, since it uses less digits than its factorization.

213111112012342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192321575.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 213111112012342 its reverse (243210211111312), we get a palindrome (456321323123654).

The spelling of 213111112012342 in words is "two hundred thirteen trillion, one hundred eleven billion, one hundred twelve million, twelve thousand, three hundred forty-two".