321431323042143 has 12 divisors (see below), whose sum is σ = 464344771364760. Its totient is φ = 214262125990416.

The previous prime is 321431323042103. The next prime is 321431323042157. The reversal of 321431323042143 is 341240323134123.

321431323042143 is a `hidden beast` number, since 3 + 2 + 1 + 4 + 3 + 132 + 304 + 214 + 3 = 666.

It is not a de Polignac number, because 321431323042143 - 2³⁸ = 321156445135199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321431323042098 and 321431323042107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321431323042103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2118478621 + ... + 2118630342.

It is an arithmetic number, because the mean of its divisors is an integer number (38695397613730).

Almost surely, 2^{321431323042143} is an apocalyptic number.

321431323042143 is a deficient number, since it is larger than the sum of its proper divisors (142913448322617).

321431323042143 is a wasteful number, since it uses less digits than its factorization.

321431323042143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237117398 (or 4237117395 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 321431323042143 its reverse (341240323134123), we get a palindrome (662671646176266).

The spelling of 321431323042143 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, three hundred twenty-three million, forty-two thousand, one hundred forty-three".