31103102233223 has 4 divisors (see below), whose sum is σ = 31139395235520. Its totient is φ = 31066809230928.

The previous prime is 31103102233213. The next prime is 31103102233261. The reversal of 31103102233223 is 32233220130113.

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 31103102233223 - 2³⁸ = 30828224326279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31103102233192 and 31103102233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103102233213) 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, 18146499863 + ... + 18146501576.

It is an arithmetic number, because the mean of its divisors is an integer number (7784848808880).

Almost surely, 2^{31103102233223} is an apocalyptic number.

31103102233223 is a deficient number, since it is larger than the sum of its proper divisors (36293002297).

31103102233223 is an equidigital number, since it uses as much as digits as its factorization.

31103102233223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36293002296.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31103102233223 its reverse (32233220130113), we get a palindrome (63336322363336).

The spelling of 31103102233223 in words is "thirty-one trillion, one hundred three billion, one hundred two million, two hundred thirty-three thousand, two hundred twenty-three".