321310103103 has 32 divisors (see below), whose sum is σ = 531954662400. Its totient is φ = 189983793600.

The previous prime is 321310103089. The next prime is 321310103137. The reversal of 321310103103 is 301301013123.

It is a happy number.

321310103103 is a `hidden beast` number, since 32 + 1 + 310 + 10 + 310 + 3 = 666.

It is not a de Polignac number, because 321310103103 - 2²⁶ = 321242994239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321310103503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13181143 + ... + 13205496.

It is an arithmetic number, because the mean of its divisors is an integer number (16623583200).

Almost surely, 2^321310103103 is an apocalyptic number.

321310103103 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

321310103103 is a deficient number, since it is larger than the sum of its proper divisors (210644559297).

321310103103 is a wasteful number, since it uses less digits than its factorization.

321310103103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26386700 (or 26386694 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 321310103103 its reverse (301301013123), we get a palindrome (622611116226).

The spelling of 321310103103 in words is "three hundred twenty-one billion, three hundred ten million, one hundred three thousand, one hundred three".