321102120000 has 840 divisors, whose sum is σ = 1157602748544. Its totient is φ = 78475264000.

The previous prime is 321102119971. The next prime is 321102120007. The reversal of 321102120000 is 21201123.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (321102120007) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1629959902 + ... + 1629960098.

Almost surely, 2^321102120000 is an apocalyptic number.

321102120000 is a gapful number since it is divisible by the number (30) 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 321102120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (578801374272).

321102120000 is an abundant number, since it is smaller than the sum of its proper divisors (836500628544).

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

321102120000 is a wasteful number, since it uses less digits than its factorization.

321102120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 321102120000 its reverse (21201123), we get a palindrome (321123321123).

The spelling of 321102120000 in words is "three hundred twenty-one billion, one hundred two million, one hundred twenty thousand".