321420233342342 has 16 divisors (see below), whose sum is σ = 492409316071872. Its totient is φ = 157284084561600.

The previous prime is 321420233342339. The next prime is 321420233342347. The reversal of 321420233342342 is 243243332024123.

It is a junction number, because it is equal to n+sod(n) for n = 321420233342296 and 321420233342305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321420233342347) 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, 70247909 + ... + 74683392.

It is an arithmetic number, because the mean of its divisors is an integer number (30775582254492).

Almost surely, 2^{321420233342342} is an apocalyptic number.

321420233342342 is a deficient number, since it is larger than the sum of its proper divisors (170989082729530).

321420233342342 is a wasteful number, since it uses less digits than its factorization.

321420233342342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144954943.

The product of its (nonzero) digits is 497664, while the sum is 38.

Adding to 321420233342342 its reverse (243243332024123), we get a palindrome (564663565366465).

The spelling of 321420233342342 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred thirty-three million, three hundred forty-two thousand, three hundred forty-two".