111105270042 has 64 divisors (see below), whose sum is σ = 241417580544. Its totient is φ = 33884766720.

The previous prime is 111105269993. The next prime is 111105270049. The reversal of 111105270042 is 240072501111.

It is a super-2 number, since 2×111105270042² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111105269994 and 111105270021.

It is not an unprimeable number, because it can be changed into a prime (111105270049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11694238 + ... + 11703734.

It is an arithmetic number, because the mean of its divisors is an integer number (3772149696).

Almost surely, 2^111105270042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111105270042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120708790272).

111105270042 is an abundant number, since it is smaller than the sum of its proper divisors (130312310502).

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

111105270042 is a wasteful number, since it uses less digits than its factorization.

111105270042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10823.

The product of its (nonzero) digits is 560, while the sum is 24.

Adding to 111105270042 its reverse (240072501111), we get a palindrome (351177771153).

The spelling of 111105270042 in words is "one hundred eleven billion, one hundred five million, two hundred seventy thousand, forty-two".