23131012222 has 4 divisors (see below), whose sum is σ = 34696518336. Its totient is φ = 11565506110.

The previous prime is 23131012211. The next prime is 23131012237. The reversal of 23131012222 is 22221013132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23131012222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5782753054 + ... + 5782753057.

It is an arithmetic number, because the mean of its divisors is an integer number (8674129584).

Almost surely, 2^23131012222 is an apocalyptic number.

23131012222 is a deficient number, since it is larger than the sum of its proper divisors (11565506114).

23131012222 is a wasteful number, since it uses less digits than its factorization.

23131012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11565506113.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23131012222 its reverse (22221013132), we get a palindrome (45352025354).

The spelling of 23131012222 in words is "twenty-three billion, one hundred thirty-one million, twelve thousand, two hundred twenty-two".