31030112320103 has 64 divisors (see below), whose sum is σ = 35464799462400. Its totient is φ = 26950766868480.

The previous prime is 31030112320091. The next prime is 31030112320117. The reversal of 31030112320103 is 30102321103013.

It is not a de Polignac number, because 31030112320103 - 2⁸ = 31030112319847 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 (31030112320183) 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 63 ways as a sum of consecutive naturals, for example, 684530543 + ... + 684575871.

It is an arithmetic number, because the mean of its divisors is an integer number (554137491600).

Almost surely, 2^{31030112320103} is an apocalyptic number.

31030112320103 is a deficient number, since it is larger than the sum of its proper divisors (4434687142297).

31030112320103 is a wasteful number, since it uses less digits than its factorization.

31030112320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45752.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31030112320103 its reverse (30102321103013), we get a palindrome (61132433423116).

The spelling of 31030112320103 in words is "thirty-one trillion, thirty billion, one hundred twelve million, three hundred twenty thousand, one hundred three".