11311120230 has 32 divisors (see below), whose sum is σ = 27551867904. Its totient is φ = 2971278816.

The previous prime is 11311120207. The next prime is 11311120243. The reversal of 11311120230 is 3202111311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2811702 + ... + 2815721.

It is an arithmetic number, because the mean of its divisors is an integer number (860995872).

Almost surely, 2^11311120230 is an apocalyptic number.

11311120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311120230 is an abundant number, since it is smaller than the sum of its proper divisors (16240747674).

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

11311120230 is a wasteful number, since it uses less digits than its factorization.

11311120230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5627500.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11311120230 its reverse (3202111311), we get a palindrome (14513231541).

The spelling of 11311120230 in words is "eleven billion, three hundred eleven million, one hundred twenty thousand, two hundred thirty".