111422431340 has 72 divisors (see below), whose sum is σ = 258260978976. Its totient is φ = 40348915200.

The previous prime is 111422431279. The next prime is 111422431387. The reversal of 111422431340 is 43134224111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487697 + ... + 678743.

Almost surely, 2^111422431340 is an apocalyptic number.

111422431340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111422431340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129130489488).

111422431340 is an abundant number, since it is smaller than the sum of its proper divisors (146838547636).

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

111422431340 is a wasteful number, since it uses less digits than its factorization.

111422431340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191319 (or 191306 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 111422431340 its reverse (43134224111), we get a palindrome (154556655451).

The spelling of 111422431340 in words is "one hundred eleven billion, four hundred twenty-two million, four hundred thirty-one thousand, three hundred forty".