31032330112103 has 4 divisors (see below), whose sum is σ = 31032615054600. Its totient is φ = 31032045169608.

The previous prime is 31032330112079. The next prime is 31032330112163. The reversal of 31032330112103 is 30121103323013.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31032330112103 - 2¹² = 31032330108007 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 (31032330112163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142307825 + ... + 142525722.

It is an arithmetic number, because the mean of its divisors is an integer number (7758153763650).

Almost surely, 2^{31032330112103} is an apocalyptic number.

31032330112103 is a deficient number, since it is larger than the sum of its proper divisors (284942497).

31032330112103 is a wasteful number, since it uses less digits than its factorization.

31032330112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284942496.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31032330112103 its reverse (30121103323013), we get a palindrome (61153433435116).

The spelling of 31032330112103 in words is "thirty-one trillion, thirty-two billion, three hundred thirty million, one hundred twelve thousand, one hundred three".