11103450420 has 48 divisors (see below), whose sum is σ = 32092558848. Its totient is φ = 2865406080.

The previous prime is 11103450377. The next prime is 11103450461. The reversal of 11103450420 is 2405430111.

It is a super-2 number, since 2×11103450420² (a number of 21 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, 2982939 + ... + 2986658.

It is an arithmetic number, because the mean of its divisors is an integer number (668594976).

Almost surely, 2^11103450420 is an apocalyptic number.

11103450420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11103450420 is an abundant number, since it is smaller than the sum of its proper divisors (20989108428).

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

11103450420 is a wasteful number, since it uses less digits than its factorization.

11103450420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969640 (or 5969638 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 11103450420 its reverse (2405430111), we get a palindrome (13508880531).

The spelling of 11103450420 in words is "eleven billion, one hundred three million, four hundred fifty thousand, four hundred twenty".