131312022112 has 12 divisors (see below), whose sum is σ = 258520543596. Its totient is φ = 65656011040.

The previous prime is 131312022067. The next prime is 131312022137. The reversal of 131312022112 is 211220213131.

It is a super-2 number, since 2×131312022112² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131312022112.

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, 2051750314 + ... + 2051750377.

It is an arithmetic number, because the mean of its divisors is an integer number (21543378633).

Almost surely, 2^131312022112 is an apocalyptic number.

It is an amenable number.

131312022112 is a deficient number, since it is larger than the sum of its proper divisors (127208521484).

131312022112 is an equidigital number, since it uses as much as digits as its factorization.

131312022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103500701 (or 4103500693 counting only the distinct ones).

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

Adding to 131312022112 its reverse (211220213131), we get a palindrome (342532235243).

The spelling of 131312022112 in words is "one hundred thirty-one billion, three hundred twelve million, twenty-two thousand, one hundred twelve".