11323121000 has 64 divisors (see below), whose sum is σ = 26659039680. Its totient is φ = 4501396800.

The previous prime is 11323120981. The next prime is 11323121011. The reversal of 11323121000 is 12132311.

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, 128267 + ... + 197733.

It is an arithmetic number, because the mean of its divisors is an integer number (416547495).

Almost surely, 2^11323121000 is an apocalyptic number.

11323121000 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 11323121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13329519840).

11323121000 is an abundant number, since it is smaller than the sum of its proper divisors (15335918680).

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

11323121000 is a wasteful number, since it uses less digits than its factorization.

11323121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69651 (or 69637 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11323121000 its reverse (12132311), we get a palindrome (11335253311).

The spelling of 11323121000 in words is "eleven billion, three hundred twenty-three million, one hundred twenty-one thousand".