131001111242328 has 128 divisors (see below), whose sum is σ = 331661304414720. Its totient is φ = 43114816081920.

The previous prime is 131001111242327. The next prime is 131001111242347. The reversal of 131001111242328 is 823242111100131.

It is a super-2 number, since 2×131001111242328² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131001111242295 and 131001111242304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131001111242327) 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 31 ways as a sum of consecutive naturals, for example, 1704129733 + ... + 1704206603.

It is an arithmetic number, because the mean of its divisors is an integer number (2591103940740).

Almost surely, 2^{131001111242328} is an apocalyptic number.

It is an amenable number.

131001111242328 is an abundant number, since it is smaller than the sum of its proper divisors (200660193172392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131001111242328 is a wasteful number, since it uses less digits than its factorization.

131001111242328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78697 (or 78693 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

Adding to 131001111242328 its reverse (823242111100131), we get a palindrome (954243222342459).

The spelling of 131001111242328 in words is "one hundred thirty-one trillion, one billion, one hundred eleven million, two hundred forty-two thousand, three hundred twenty-eight".