31334322223 has 4 divisors (see below), whose sum is σ = 31359819240. Its totient is φ = 31308825208.

The previous prime is 31334322211. The next prime is 31334322233. The reversal of 31334322223 is 32222343313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32222343313 = 347 ⋅92859779.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31334322223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31334322191 and 31334322200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31334322233) 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, 12746665 + ... + 12749122.

It is an arithmetic number, because the mean of its divisors is an integer number (7839954810).

Almost surely, 2^31334322223 is an apocalyptic number.

31334322223 is a deficient number, since it is larger than the sum of its proper divisors (25497017).

31334322223 is a wasteful number, since it uses less digits than its factorization.

31334322223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25497016.

The product of its digits is 15552, while the sum is 28.

Adding to 31334322223 its reverse (32222343313), we get a palindrome (63556665536).

The spelling of 31334322223 in words is "thirty-one billion, three hundred thirty-four million, three hundred twenty-two thousand, two hundred twenty-three".