11033312420 has 48 divisors (see below), whose sum is σ = 25051819968. Its totient is φ = 4057584000.

The previous prime is 11033312401. The next prime is 11033312441. The reversal of 11033312420 is 2421333011.

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 = 11033312392 and 11033312401.

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, 19274 + ... + 149793.

It is an arithmetic number, because the mean of its divisors is an integer number (521912916).

Almost surely, 2^11033312420 is an apocalyptic number.

11033312420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11033312420 is an abundant number, since it is smaller than the sum of its proper divisors (14018507548).

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

11033312420 is a wasteful number, since it uses less digits than its factorization.

11033312420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169340 (or 169338 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11033312420 its reverse (2421333011), we get a palindrome (13454645431).

The spelling of 11033312420 in words is "eleven billion, thirty-three million, three hundred twelve thousand, four hundred twenty".