321340442200042 has 16 divisors (see below), whose sum is σ = 492937562832840. Its totient is φ = 157066876334592.

The previous prime is 321340442200039. The next prime is 321340442200049. The reversal of 321340442200042 is 240002244043123.

It can be written as a sum of positive squares in 4 ways, for example, as 195030693384921 + 126309748815121 = 13965339^2 + 11238761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321340442199977 and 321340442200013.

It is not an unprimeable number, because it can be changed into a prime (321340442200049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9738753117 + ... + 9738786112.

Almost surely, 2^{321340442200042} is an apocalyptic number.

321340442200042 is a deficient number, since it is larger than the sum of its proper divisors (171597120632798).

321340442200042 is a wasteful number, since it uses less digits than its factorization.

321340442200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19477539417.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 321340442200042 its reverse (240002244043123), we get a palindrome (561342686243165).

The spelling of 321340442200042 in words is "three hundred twenty-one trillion, three hundred forty billion, four hundred forty-two million, two hundred thousand, forty-two".