31102323111203 has 4 divisors (see below), whose sum is σ = 31102623496920. Its totient is φ = 31102022725488.

The previous prime is 31102323111191. The next prime is 31102323111229. The reversal of 31102323111203 is 30211132320113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31102323111203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31102323111703) 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 3 ways as a sum of consecutive naturals, for example, 150037493 + ... + 150244646.

It is an arithmetic number, because the mean of its divisors is an integer number (7775655874230).

Almost surely, 2^{31102323111203} is an apocalyptic number.

31102323111203 is a deficient number, since it is larger than the sum of its proper divisors (300385717).

31102323111203 is a wasteful number, since it uses less digits than its factorization.

31102323111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300385716.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31102323111203 its reverse (30211132320113), we get a palindrome (61313455431316).

The spelling of 31102323111203 in words is "thirty-one trillion, one hundred two billion, three hundred twenty-three million, one hundred eleven thousand, two hundred three".