321404111121142 has 64 divisors (see below), whose sum is σ = 562039891568640. Its totient is φ = 134994156143616.

The previous prime is 321404111121133. The next prime is 321404111121169. The reversal of 321404111121142 is 241121111404123.

It is a self number, because there is not a number n which added to its sum of digits gives 321404111121142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419151438 + ... + 419917534.

It is an arithmetic number, because the mean of its divisors is an integer number (8781873305760).

Almost surely, 2^{321404111121142} is an apocalyptic number.

321404111121142 is a deficient number, since it is larger than the sum of its proper divisors (240635780447498).

321404111121142 is a wasteful number, since it uses less digits than its factorization.

321404111121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767725.

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 321404111121142 its reverse (241121111404123), we get a palindrome (562525222525265).

The spelling of 321404111121142 in words is "three hundred twenty-one trillion, four hundred four billion, one hundred eleven million, one hundred twenty-one thousand, one hundred forty-two".