11403223621320 has 128 divisors (see below), whose sum is σ = 36033289344000. Its totient is φ = 2878965630720.

The previous prime is 11403223621291. The next prime is 11403223621379. The reversal of 11403223621320 is 2312632230411.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1950475 + ... + 5158565.

It is an arithmetic number, because the mean of its divisors is an integer number (281510073000).

Almost surely, 2^{11403223621320} is an apocalyptic number.

11403223621320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11403223621320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18016644672000).

11403223621320 is an abundant number, since it is smaller than the sum of its proper divisors (24630065722680).

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

11403223621320 is a wasteful number, since it uses less digits than its factorization.

11403223621320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209683 (or 3209679 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 11403223621320 its reverse (2312632230411), we get a palindrome (13715855851731).

The spelling of 11403223621320 in words is "eleven trillion, four hundred three billion, two hundred twenty-three million, six hundred twenty-one thousand, three hundred twenty".