321430111431442 has 16 divisors (see below), whose sum is σ = 535982716829952. Its totient is φ = 143566799150160.

The previous prime is 321430111431439. The next prime is 321430111431463. The reversal of 321430111431442 is 244134111034123.

It is a junction number, because it is equal to n+sod(n) for n = 321430111431398 and 321430111431407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199398331348 + ... + 199398332959.

It is an arithmetic number, because the mean of its divisors is an integer number (33498919801872).

Almost surely, 2^{321430111431442} is an apocalyptic number.

321430111431442 is a deficient number, since it is larger than the sum of its proper divisors (214552605398510).

321430111431442 is a wasteful number, since it uses less digits than its factorization.

321430111431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398796664353.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 321430111431442 its reverse (244134111034123), we get a palindrome (565564222465565).

The spelling of 321430111431442 in words is "three hundred twenty-one trillion, four hundred thirty billion, one hundred eleven million, four hundred thirty-one thousand, four hundred forty-two".