321204120011012 has 24 divisors (see below), whose sum is σ = 642408761554560. Its totient is φ = 137658796819200.

The previous prime is 321204120010927. The next prime is 321204120011081. The reversal of 321204120011012 is 210110021402123.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36980564 + ... + 44832692.

It is an arithmetic number, because the mean of its divisors is an integer number (26767031731440).

Almost surely, 2^{321204120011012} is an apocalyptic number.

It is an amenable number.

321204120011012 is an abundant number, since it is smaller than the sum of its proper divisors (321204641543548).

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

321204120011012 is a wasteful number, since it uses less digits than its factorization.

321204120011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9313091 (or 9313089 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 321204120011012 its reverse (210110021402123), we get a palindrome (531314141413135).

The spelling of 321204120011012 in words is "three hundred twenty-one trillion, two hundred four billion, one hundred twenty million, eleven thousand, twelve".