321130010000 has 50 divisors (see below), whose sum is σ = 777487891422. Its totient is φ = 128452000000.

The previous prime is 321130009943. The next prime is 321130010017. The reversal of 321130010000 is 10031123.

It can be written as a sum of positive squares in 5 ways, for example, as 84264800656 + 236865209344 = 290284^2 + 486688^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16046501 + ... + 16066500.

Almost surely, 2^321130010000 is an apocalyptic number.

It is an amenable number.

321130010000 is an abundant number, since it is smaller than the sum of its proper divisors (456357881422).

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

321130010000 is an equidigital number, since it uses as much as digits as its factorization.

321130010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32113029 (or 32113008 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 321130010000 its reverse (10031123), we get a palindrome (321140041123).

The spelling of 321130010000 in words is "three hundred twenty-one billion, one hundred thirty million, ten thousand".