11033231420 has 24 divisors (see below), whose sum is σ = 23188659648. Its totient is φ = 4409697600.

The previous prime is 11033231371. The next prime is 11033231423. The reversal of 11033231420 is 2413233011.

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 = 11033231392 and 11033231401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033231423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 199451 + ... + 248690.

It is an arithmetic number, because the mean of its divisors is an integer number (966194152).

Almost surely, 2^11033231420 is an apocalyptic number.

11033231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11033231420 is an abundant number, since it is smaller than the sum of its proper divisors (12155428228).

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

11033231420 is a wasteful number, since it uses less digits than its factorization.

11033231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449381 (or 449379 counting only the distinct ones).

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

Adding to 11033231420 its reverse (2413233011), we get a palindrome (13446464431).

The spelling of 11033231420 in words is "eleven billion, thirty-three million, two hundred thirty-one thousand, four hundred twenty".