11123140220440 has 16 divisors (see below), whose sum is σ = 25027065496080. Its totient is φ = 4449256088160.

The previous prime is 11123140220399. The next prime is 11123140220477. The reversal of 11123140220440 is 4402204132111.

It is a congruent number.

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, 139039252716 + ... + 139039252795.

It is an arithmetic number, because the mean of its divisors is an integer number (1564191593505).

Almost surely, 2^{11123140220440} is an apocalyptic number.

11123140220440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11123140220440 is an abundant number, since it is smaller than the sum of its proper divisors (13903925275640).

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

11123140220440 is a wasteful number, since it uses less digits than its factorization.

11123140220440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278078505522 (or 278078505518 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 11123140220440 its reverse (4402204132111), we get a palindrome (15525344352551).

The spelling of 11123140220440 in words is "eleven trillion, one hundred twenty-three billion, one hundred forty million, two hundred twenty thousand, four hundred forty".