321134140205 has 16 divisors (see below), whose sum is σ = 394825826304. Its totient is φ = 250599496320.

The previous prime is 321134140193. The next prime is 321134140259. The reversal of 321134140205 is 502041431123.

It is a happy number.

It is not a de Polignac number, because 321134140205 - 2¹⁸ = 321133878061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1131812 + ... + 1386818.

It is an arithmetic number, because the mean of its divisors is an integer number (24676614144).

Almost surely, 2^321134140205 is an apocalyptic number.

It is an amenable number.

321134140205 is a deficient number, since it is larger than the sum of its proper divisors (73691686099).

321134140205 is a wasteful number, since it uses less digits than its factorization.

321134140205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261196.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 321134140205 its reverse (502041431123), we get a palindrome (823175571328).

The spelling of 321134140205 in words is "three hundred twenty-one billion, one hundred thirty-four million, one hundred forty thousand, two hundred five".