111101422542 has 16 divisors (see below), whose sum is σ = 242403103872. Its totient is φ = 33667097720.

The previous prime is 111101422441. The next prime is 111101422571. The reversal of 111101422542 is 245224101111.

It is a congruent number.

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, 841677378 + ... + 841677509.

It is an arithmetic number, because the mean of its divisors is an integer number (15150193992).

Almost surely, 2^111101422542 is an apocalyptic number.

111101422542 is an abundant number, since it is smaller than the sum of its proper divisors (131301681330).

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

111101422542 is a wasteful number, since it uses less digits than its factorization.

111101422542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683354903.

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 111101422542 its reverse (245224101111), we get a palindrome (356325523653).

The spelling of 111101422542 in words is "one hundred eleven billion, one hundred one million, four hundred twenty-two thousand, five hundred forty-two".