31103324121 has 8 divisors (see below), whose sum is σ = 43653788320. Its totient is φ = 19644204672.

The previous prime is 31103324111. The next prime is 31103324167. The reversal of 31103324121 is 12142330113.

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

It is not a de Polignac number, because 31103324121 - 2¹⁵ = 31103291353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103324111) 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, 272836120 + ... + 272836233.

It is an arithmetic number, because the mean of its divisors is an integer number (5456723540).

Almost surely, 2^31103324121 is an apocalyptic number.

It is an amenable number.

31103324121 is a deficient number, since it is larger than the sum of its proper divisors (12550464199).

31103324121 is a wasteful number, since it uses less digits than its factorization.

31103324121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545672375.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31103324121 its reverse (12142330113), we get a palindrome (43245654234).

The spelling of 31103324121 in words is "thirty-one billion, one hundred three million, three hundred twenty-four thousand, one hundred twenty-one".