321420313203400 has 96 divisors (see below), whose sum is σ = 748238969016000. Its totient is φ = 128406984561920.

The previous prime is 321420313203383. The next prime is 321420313203419. The reversal of 321420313203400 is 4302313024123.

It is a happy number.

It is a super-2 number, since 2×321420313203400² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3266849007 + ... + 3266947393.

It is an arithmetic number, because the mean of its divisors is an integer number (7794155927250).

Almost surely, 2^{321420313203400} is an apocalyptic number.

It is an amenable number.

321420313203400 is an abundant number, since it is smaller than the sum of its proper divisors (426818655812600).

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

321420313203400 is a wasteful number, since it uses less digits than its factorization.

321420313203400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118711 (or 118702 counting only the distinct ones).

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

Adding to 321420313203400 its reverse (4302313024123), we get a palindrome (325722626227523).

The spelling of 321420313203400 in words is "three hundred twenty-one trillion, four hundred twenty billion, three hundred thirteen million, two hundred three thousand, four hundred".