121330321000 has 96 divisors (see below), whose sum is σ = 330266219400. Its totient is φ = 41598950400.

The previous prime is 121330320919. The next prime is 121330321001. The reversal of 121330321000 is 123033121.

It can be written as a sum of positive squares in 4 ways, for example, as 52915641156 + 68414679844 = 230034^2 + 261562^2 .

It is not an unprimeable number, because it can be changed into a prime (121330321001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1189065 + ... + 1287064.

Almost surely, 2^121330321000 is an apocalyptic number.

121330321000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121330321000 is an abundant number, since it is smaller than the sum of its proper divisors (208935898400).

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

121330321000 is a wasteful number, since it uses less digits than its factorization.

121330321000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476164 (or 2476143 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 121330321000 its reverse (123033121), we get a palindrome (121453354121).

The spelling of 121330321000 in words is "one hundred twenty-one billion, three hundred thirty million, three hundred twenty-one thousand".