131272320632 has 32 divisors (see below), whose sum is σ = 246576445920. Its totient is φ = 65518696320.

The previous prime is 131272320617. The next prime is 131272320643. The reversal of 131272320632 is 236023272131.

It is a happy number.

It is a super-2 number, since 2×131272320632² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15176933 + ... + 15185579.

It is an arithmetic number, because the mean of its divisors is an integer number (7705513935).

Almost surely, 2^131272320632 is an apocalyptic number.

It is an amenable number.

131272320632 is a deficient number, since it is larger than the sum of its proper divisors (115304125288).

131272320632 is a wasteful number, since it uses less digits than its factorization.

131272320632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11831 (or 11827 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 131272320632 its reverse (236023272131), we get a palindrome (367295592763).

The spelling of 131272320632 in words is "one hundred thirty-one billion, two hundred seventy-two million, three hundred twenty thousand, six hundred thirty-two".