111440322420 has 48 divisors (see below), whose sum is σ = 356609033088. Its totient is φ = 25472073600.

The previous prime is 111440322401. The next prime is 111440322439. The reversal of 111440322420 is 24223044111.

It is an interprime number because it is at equal distance from previous prime (111440322401) and next prime (111440322439).

It is a super-2 number, since 2×111440322420² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132666631 + ... + 132667470.

It is an arithmetic number, because the mean of its divisors is an integer number (7429354856).

Almost surely, 2^111440322420 is an apocalyptic number.

111440322420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111440322420 is an abundant number, since it is smaller than the sum of its proper divisors (245168710668).

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

111440322420 is a wasteful number, since it uses less digits than its factorization.

111440322420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265334120 (or 265334118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 111440322420 its reverse (24223044111), we get a palindrome (135663366531).

The spelling of 111440322420 in words is "one hundred eleven billion, four hundred forty million, three hundred twenty-two thousand, four hundred twenty".