11233020420 has 36 divisors (see below), whose sum is σ = 34073495820. Its totient is φ = 2995472064.

The previous prime is 11233020413. The next prime is 11233020473. The reversal of 11233020420 is 2402033211.

11233020420 is a `hidden beast` number, since 11 + 233 + 0 + 2 + 0 + 420 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4109322816 + 7123697604 = 64104^2 + 84402^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11233020420² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11233020393 and 11233020402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31202655 + ... + 31203014.

It is an arithmetic number, because the mean of its divisors is an integer number (946485995).

Almost surely, 2^11233020420 is an apocalyptic number.

11233020420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11233020420 is an abundant number, since it is smaller than the sum of its proper divisors (22840475400).

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

11233020420 is a wasteful number, since it uses less digits than its factorization.

11233020420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62405684 (or 62405679 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 11233020420 its reverse (2402033211), we get a palindrome (13635053631).

The spelling of 11233020420 in words is "eleven billion, two hundred thirty-three million, twenty thousand, four hundred twenty".