131101222312 has 16 divisors (see below), whose sum is σ = 256502391840. Its totient is φ = 62700584496.

The previous prime is 131101222261. The next prime is 131101222331. The reversal of 131101222312 is 213222101131.

It is a self number, because there is not a number n which added to its sum of digits gives 131101222312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356253138 + ... + 356253505.

It is an arithmetic number, because the mean of its divisors is an integer number (16031399490).

Almost surely, 2^131101222312 is an apocalyptic number.

It is an amenable number.

131101222312 is a deficient number, since it is larger than the sum of its proper divisors (125401169528).

131101222312 is a wasteful number, since it uses less digits than its factorization.

131101222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712506672 (or 712506668 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131101222312 its reverse (213222101131), we get a palindrome (344323323443).

The spelling of 131101222312 in words is "one hundred thirty-one billion, one hundred one million, two hundred twenty-two thousand, three hundred twelve".