31100321103 has 16 divisors (see below), whose sum is σ = 42596382720. Its totient is φ = 20169128736.

The previous prime is 31100321051. The next prime is 31100321107. The reversal of 31100321103 is 30112300113.

It is not a de Polignac number, because 31100321103 - 2⁸ = 31100320847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100321107) 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 15 ways as a sum of consecutive naturals, for example, 587226 + ... + 637992.

It is an arithmetic number, because the mean of its divisors is an integer number (2662273920).

Almost surely, 2^31100321103 is an apocalyptic number.

31100321103 is a deficient number, since it is larger than the sum of its proper divisors (11496061617).

31100321103 is a wasteful number, since it uses less digits than its factorization.

31100321103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56326.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31100321103 its reverse (30112300113), we get a palindrome (61212621216).

The spelling of 31100321103 in words is "thirty-one billion, one hundred million, three hundred twenty-one thousand, one hundred three".