321231111103 has 16 divisors (see below), whose sum is σ = 371308242240. Its totient is φ = 272201757696.

The previous prime is 321231111101. The next prime is 321231111107. The reversal of 321231111103 is 301111132123.

It is a cyclic number.

It is not a de Polignac number, because 321231111103 - 2¹ = 321231111101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321231111101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3992851 + ... + 4072507.

It is an arithmetic number, because the mean of its divisors is an integer number (23206765140).

Almost surely, 2^321231111103 is an apocalyptic number.

321231111103 is a deficient number, since it is larger than the sum of its proper divisors (50077131137).

321231111103 is an equidigital number, since it uses as much as digits as its factorization.

321231111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86226.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 321231111103 its reverse (301111132123), we get a palindrome (622342243226).

The spelling of 321231111103 in words is "three hundred twenty-one billion, two hundred thirty-one million, one hundred eleven thousand, one hundred three".