321203340213040 has 40 divisors (see below), whose sum is σ = 746926060801968. Its totient is φ = 128459263860480.

The previous prime is 321203340213031. The next prime is 321203340213053. The reversal of 321203340213040 is 40312043302123.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 344409922 + ... + 345341281.

Almost surely, 2^{321203340213040} is an apocalyptic number.

It is an amenable number.

321203340213040 is an abundant number, since it is smaller than the sum of its proper divisors (425722720588928).

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

321203340213040 is a wasteful number, since it uses less digits than its factorization.

321203340213040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689757037 (or 689757031 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 321203340213040 its reverse (40312043302123), we get a palindrome (361515383515163).

The spelling of 321203340213040 in words is "three hundred twenty-one trillion, two hundred three billion, three hundred forty million, two hundred thirteen thousand, forty".