111421842134 has 8 divisors (see below), whose sum is σ = 168197303568. Its totient is φ = 55356074280.

The previous prime is 111421842131. The next prime is 111421842151. The reversal of 111421842134 is 431248124111.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111421842134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111421842131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177423002 + ... + 177423629.

It is an arithmetic number, because the mean of its divisors is an integer number (21024662946).

Almost surely, 2^111421842134 is an apocalyptic number.

111421842134 is a deficient number, since it is larger than the sum of its proper divisors (56775461434).

111421842134 is a wasteful number, since it uses less digits than its factorization.

111421842134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354846790.

The product of its digits is 6144, while the sum is 32.

Adding to 111421842134 its reverse (431248124111), we get a palindrome (542669966245).

The spelling of 111421842134 in words is "one hundred eleven billion, four hundred twenty-one million, eight hundred forty-two thousand, one hundred thirty-four".