131232202311231 has 16 divisors (see below), whose sum is σ = 222192088569600. Its totient is φ = 74989829892024.

The previous prime is 131232202311229. The next prime is 131232202311347. The reversal of 131232202311231 is 132113202232131.

131232202311231 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 322 + 0 + 2 + 311 + 23 + 1 = 666.

It is not a de Polignac number, because 131232202311231 - 2¹ = 131232202311229 is a prime.

It is a super-2 number, since 2×131232202311231² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 131232202311195 and 131232202311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131232202311631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347175138201 + ... + 347175138578.

It is an arithmetic number, because the mean of its divisors is an integer number (13887005535600).

Almost surely, 2^{131232202311231} is an apocalyptic number.

131232202311231 is a deficient number, since it is larger than the sum of its proper divisors (90959886258369).

131232202311231 is an equidigital number, since it uses as much as digits as its factorization.

131232202311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694350276795 (or 694350276789 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 131232202311231 its reverse (132113202232131), we get a palindrome (263345404543362).

The spelling of 131232202311231 in words is "one hundred thirty-one trillion, two hundred thirty-two billion, two hundred two million, three hundred eleven thousand, two hundred thirty-one".