31103002002223 has 4 divisors (see below), whose sum is σ = 32106324647488. Its totient is φ = 30099679356960.

The previous prime is 31103002002197. The next prime is 31103002002229. The reversal of 31103002002223 is 32220020030113.

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-31103002002223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31103002002223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103002002229) 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, 501661322586 + ... + 501661322647.

It is an arithmetic number, because the mean of its divisors is an integer number (8026581161872).

Almost surely, 2^{31103002002223} is an apocalyptic number.

31103002002223 is a deficient number, since it is larger than the sum of its proper divisors (1003322645265).

31103002002223 is a wasteful number, since it uses less digits than its factorization.

31103002002223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003322645264.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31103002002223 its reverse (32220020030113), we get a palindrome (63323022032336).

The spelling of 31103002002223 in words is "thirty-one trillion, one hundred three billion, two million, two thousand, two hundred twenty-three".