321130400140321 has 2 divisors, whose sum is σ = 321130400140322. Its totient is φ = 321130400140320.

The previous prime is 321130400140313. The next prime is 321130400140337. The reversal of 321130400140321 is 123041004031123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212989535293921 + 108140864846400 = 14594161^2 + 10399080^2 .

It is a cyclic number.

It is not a de Polignac number, because 321130400140321 - 2³ = 321130400140313 is a prime.

It is not a weakly prime, because it can be changed into another prime (321130400140301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160565200070160 + 160565200070161.

It is an arithmetic number, because the mean of its divisors is an integer number (160565200070161).

Almost surely, 2^{321130400140321} is an apocalyptic number.

It is an amenable number.

321130400140321 is a deficient number, since it is larger than the sum of its proper divisors (1).

321130400140321 is an equidigital number, since it uses as much as digits as its factorization.

321130400140321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 321130400140321 its reverse (123041004031123), we get a palindrome (444171404171444).

The spelling of 321130400140321 in words is "three hundred twenty-one trillion, one hundred thirty billion, four hundred million, one hundred forty thousand, three hundred twenty-one".