321340034140 has 12 divisors (see below), whose sum is σ = 674814071736. Its totient is φ = 128536013648.

The previous prime is 321340034101. The next prime is 321340034149. The reversal of 321340034140 is 41430043123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321340034149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8033500834 + ... + 8033500873.

It is an arithmetic number, because the mean of its divisors is an integer number (56234505978).

Almost surely, 2^321340034140 is an apocalyptic number.

It is an amenable number.

321340034140 is an abundant number, since it is smaller than the sum of its proper divisors (353474037596).

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

321340034140 is a wasteful number, since it uses less digits than its factorization.

321340034140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16067001716 (or 16067001714 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 321340034140 its reverse (41430043123), we get a palindrome (362770077263).

The spelling of 321340034140 in words is "three hundred twenty-one billion, three hundred forty million, thirty-four thousand, one hundred forty".