131112626650 has 24 divisors (see below), whose sum is σ = 258214751100. Its totient is φ = 49360047360.

The previous prime is 131112626647. The next prime is 131112626651. The reversal of 131112626650 is 56626211131.

It can be written as a sum of positive squares in 6 ways, for example, as 78988540401 + 52124086249 = 281049^2 + 228307^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (131112626651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77124225 + ... + 77125924.

Almost surely, 2^131112626650 is an apocalyptic number.

131112626650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131112626650 is a deficient number, since it is larger than the sum of its proper divisors (127102124450).

131112626650 is a wasteful number, since it uses less digits than its factorization.

131112626650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154250178 (or 154250173 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 131112626650 its reverse (56626211131), we get a palindrome (187738837781).

The spelling of 131112626650 in words is "one hundred thirty-one billion, one hundred twelve million, six hundred twenty-six thousand, six hundred fifty".