23231131031222 has 4 divisors (see below), whose sum is σ = 34846696546836. Its totient is φ = 11615565515610.

The previous prime is 23231131031209. The next prime is 23231131031237. The reversal of 23231131031222 is 22213013113232.

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

It is a junction number, because it is equal to n+sod(n) for n = 23231131031191 and 23231131031200.

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, 5807782757804 + ... + 5807782757807.

It is an arithmetic number, because the mean of its divisors is an integer number (8711674136709).

Almost surely, 2^{23231131031222} is an apocalyptic number.

23231131031222 is a deficient number, since it is larger than the sum of its proper divisors (11615565515614).

23231131031222 is a wasteful number, since it uses less digits than its factorization.

23231131031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11615565515613.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 23231131031222 its reverse (22213013113232), we get a palindrome (45444144144454).

The spelling of 23231131031222 in words is "twenty-three trillion, two hundred thirty-one billion, one hundred thirty-one million, thirty-one thousand, two hundred twenty-two".