11211323001240 has 64 divisors (see below), whose sum is σ = 33652541698560. Its totient is φ = 2988035227520.

The previous prime is 11211323001233. The next prime is 11211323001269. The reversal of 11211323001240 is 4210032311211.

It is a congruent number.

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, 25577184 + ... + 26011823.

It is an arithmetic number, because the mean of its divisors is an integer number (525820964040).

Almost surely, 2^{11211323001240} is an apocalyptic number.

11211323001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211323001240 is an abundant number, since it is smaller than the sum of its proper divisors (22441218697320).

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

11211323001240 is a wasteful number, since it uses less digits than its factorization.

11211323001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51590832 (or 51590828 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11211323001240 its reverse (4210032311211), we get a palindrome (15421355312451).

The spelling of 11211323001240 in words is "eleven trillion, two hundred eleven billion, three hundred twenty-three million, one thousand, two hundred forty".