321213433101442 has 16 divisors (see below), whose sum is σ = 550678378853952. Its totient is φ = 137656205087760.

The previous prime is 321213433101433. The next prime is 321213433101479. The reversal of 321213433101442 is 244101334312123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 321213433101398 and 321213433101407.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 557602909 + ... + 558178672.

It is an arithmetic number, because the mean of its divisors is an integer number (34417398678372).

Almost surely, 2^{321213433101442} is an apocalyptic number.

321213433101442 is a deficient number, since it is larger than the sum of its proper divisors (229464945752510).

321213433101442 is a wasteful number, since it uses less digits than its factorization.

321213433101442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115802153.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 321213433101442 its reverse (244101334312123), we get a palindrome (565314767413565).

The spelling of 321213433101442 in words is "three hundred twenty-one trillion, two hundred thirteen billion, four hundred thirty-three million, one hundred one thousand, four hundred forty-two".