31321104103123 has 8 divisors (see below), whose sum is σ = 33163674378480. Its totient is φ = 29478550759680.

The previous prime is 31321104103049. The next prime is 31321104103139. The reversal of 31321104103123 is 32130140112313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31321104103123 - 2¹⁷ = 31321103972051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31321104103823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321213 + ... + 7921198.

It is an arithmetic number, because the mean of its divisors is an integer number (4145459297310).

Almost surely, 2^{31321104103123} is an apocalyptic number.

31321104103123 is a deficient number, since it is larger than the sum of its proper divisors (1842570275357).

31321104103123 is a wasteful number, since it uses less digits than its factorization.

31321104103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8465957.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31321104103123 its reverse (32130140112313), we get a palindrome (63451244215436).

The spelling of 31321104103123 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred four million, one hundred three thousand, one hundred twenty-three".