11223140420 has 24 divisors (see below), whose sum is σ = 23651888064. Its totient is φ = 4473390816.

The previous prime is 11223140407. The next prime is 11223140431. The reversal of 11223140420 is 2404132211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11223140392 and 11223140401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985784 + ... + 997103.

It is an arithmetic number, because the mean of its divisors is an integer number (985495336).

Almost surely, 2^11223140420 is an apocalyptic number.

11223140420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11223140420 is an abundant number, since it is smaller than the sum of its proper divisors (12428747644).

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

11223140420 is a wasteful number, since it uses less digits than its factorization.

11223140420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983179 (or 1983177 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11223140420 its reverse (2404132211), we get a palindrome (13627272631).

The spelling of 11223140420 in words is "eleven billion, two hundred twenty-three million, one hundred forty thousand, four hundred twenty".