321204021040231 has 32 divisors (see below), whose sum is σ = 371018760892416. Its totient is φ = 272389586400000.

The previous prime is 321204021040219. The next prime is 321204021040247. The reversal of 321204021040231 is 132040120402123.

It is a cyclic number.

It is not a de Polignac number, because 321204021040231 - 2¹³ = 321204021032039 is a prime.

It is a super-2 number, since 2×321204021040231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321204021040196 and 321204021040205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321204021040271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273863491 + ... + 275033851.

It is an arithmetic number, because the mean of its divisors is an integer number (11594336277888).

Almost surely, 2^{321204021040231} is an apocalyptic number.

321204021040231 is a deficient number, since it is larger than the sum of its proper divisors (49814739852185).

321204021040231 is a wasteful number, since it uses less digits than its factorization.

321204021040231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171663.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 321204021040231 its reverse (132040120402123), we get a palindrome (453244141442354).

The spelling of 321204021040231 in words is "three hundred twenty-one trillion, two hundred four billion, twenty-one million, forty thousand, two hundred thirty-one".