111215136342 has 8 divisors (see below), whose sum is σ = 222430272696. Its totient is φ = 37071712112.

The previous prime is 111215136289. The next prime is 111215136343. The reversal of 111215136342 is 243631512111.

It is a sphenic number, since it is the product of 3 distinct primes.

111215136342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111215136343) 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 3 ways as a sum of consecutive naturals, for example, 9267928023 + ... + 9267928034.

It is an arithmetic number, because the mean of its divisors is an integer number (27803784087).

Almost surely, 2^111215136342 is an apocalyptic number.

111215136342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111215136342 is a wasteful number, since it uses less digits than its factorization.

111215136342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18535856062.

The product of its digits is 4320, while the sum is 30.

Adding to 111215136342 its reverse (243631512111), we get a palindrome (354846648453).

The spelling of 111215136342 in words is "one hundred eleven billion, two hundred fifteen million, one hundred thirty-six thousand, three hundred forty-two".