111421819434 has 32 divisors (see below), whose sum is σ = 234587304000. Its totient is φ = 35183579904.

The previous prime is 111421819433. The next prime is 111421819451. The reversal of 111421819434 is 434918124111.

It is a junction number, because it is equal to n+sod(n) for n = 111421819392 and 111421819401.

It is not an unprimeable number, because it can be changed into a prime (111421819433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3278722 + ... + 3312530.

It is an arithmetic number, because the mean of its divisors is an integer number (7330853250).

Almost surely, 2^111421819434 is an apocalyptic number.

111421819434 is an abundant number, since it is smaller than the sum of its proper divisors (123165484566).

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

111421819434 is a wasteful number, since it uses less digits than its factorization.

111421819434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62742.

The product of its digits is 27648, while the sum is 39.

The spelling of 111421819434 in words is "one hundred eleven billion, four hundred twenty-one million, eight hundred nineteen thousand, four hundred thirty-four".