321420324130012 has 24 divisors (see below), whose sum is σ = 576209906889120. Its totient is φ = 156788992631040.

The previous prime is 321420324129941. The next prime is 321420324130019. The reversal of 321420324130012 is 210031423024123.

It is a super-2 number, since 2×321420324130012² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321420324130019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9608608 + ... + 27113944.

It is an arithmetic number, because the mean of its divisors is an integer number (24008746120380).

Almost surely, 2^{321420324130012} is an apocalyptic number.

It is an amenable number.

321420324130012 is a deficient number, since it is larger than the sum of its proper divisors (254789582759108).

321420324130012 is a wasteful number, since it uses less digits than its factorization.

321420324130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17617341 (or 17617339 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 321420324130012 its reverse (210031423024123), we get a palindrome (531451747154135).

The spelling of 321420324130012 in words is "three hundred twenty-one trillion, four hundred twenty billion, three hundred twenty-four million, one hundred thirty thousand, twelve".