11321031121000 has 32 divisors (see below), whose sum is σ = 26491212825480. Its totient is φ = 4528412448000.

The previous prime is 11321031120961. The next prime is 11321031121033. The reversal of 11321031121000 is 12113012311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6130863219364 + 5190167901636 = 2476058^2 + 2278194^2 .

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 7 ways as a sum of consecutive naturals, for example, 5660514561 + ... + 5660516560.

Almost surely, 2^{11321031121000} is an apocalyptic number.

11321031121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321031121000 is an abundant number, since it is smaller than the sum of its proper divisors (15170181704480).

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

11321031121000 is a wasteful number, since it uses less digits than its factorization.

11321031121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321031142 (or 11321031128 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11321031121000 its reverse (12113012311), we get a palindrome (11333144133311).

The spelling of 11321031121000 in words is "eleven trillion, three hundred twenty-one billion, thirty-one million, one hundred twenty-one thousand".