11203420420 has 12 divisors (see below), whose sum is σ = 23527182924. Its totient is φ = 4481368160.

The previous prime is 11203420411. The next prime is 11203420441. The reversal of 11203420420 is 2402430211.

It can be written as a sum of positive squares in 2 ways, for example, as 7107164416 + 4096256004 = 84304^2 + 64002^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280085491 + ... + 280085530.

It is an arithmetic number, because the mean of its divisors is an integer number (1960598577).

Almost surely, 2^11203420420 is an apocalyptic number.

11203420420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203420420 is an abundant number, since it is smaller than the sum of its proper divisors (12323762504).

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

11203420420 is a wasteful number, since it uses less digits than its factorization.

11203420420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560171030 (or 560171028 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 11203420420 its reverse (2402430211), we get a palindrome (13605850631).

The spelling of 11203420420 in words is "eleven billion, two hundred three million, four hundred twenty thousand, four hundred twenty".