111400621420 has 48 divisors (see below), whose sum is σ = 255284013600. Its totient is φ = 40497361920.

The previous prime is 111400621399. The next prime is 111400621433. The reversal of 111400621420 is 24126004111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 111400621391 and 111400621400.

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, 690196 + ... + 836164.

It is an arithmetic number, because the mean of its divisors is an integer number (5318416950).

Almost surely, 2^111400621420 is an apocalyptic number.

111400621420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111400621420 is an abundant number, since it is smaller than the sum of its proper divisors (143883392180).

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

111400621420 is a wasteful number, since it uses less digits than its factorization.

111400621420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149458 (or 149456 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111400621420 its reverse (24126004111), we get a palindrome (135526625531).

The spelling of 111400621420 in words is "one hundred eleven billion, four hundred million, six hundred twenty-one thousand, four hundred twenty".