131121303250231 has 32 divisors (see below), whose sum is σ = 154018183271040. Its totient is φ = 109270317772800.

The previous prime is 131121303250213. The next prime is 131121303250303. The reversal of 131121303250231 is 132052303121131.

It is a cyclic number.

It is not a de Polignac number, because 131121303250231 - 2⁷ = 131121303250103 is a prime.

It is a super-2 number, since 2×131121303250231² (a number of 29 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 131121303250231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121303250211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1952890921 + ... + 1952958061.

It is an arithmetic number, because the mean of its divisors is an integer number (4813068227220).

Almost surely, 2^{131121303250231} is an apocalyptic number.

131121303250231 is a deficient number, since it is larger than the sum of its proper divisors (22896880020809).

131121303250231 is a wasteful number, since it uses less digits than its factorization.

131121303250231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72715.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 131121303250231 its reverse (132052303121131), we get a palindrome (263173606371362).

The spelling of 131121303250231 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred three million, two hundred fifty thousand, two hundred thirty-one".