10131201231 has 32 divisors (see below), whose sum is σ = 13971130368. Its totient is φ = 6526759680.

The previous prime is 10131201217. The next prime is 10131201247. The reversal of 10131201231 is 13210213101.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-10131201231 is a prime.

It is a super-2 number, since 2×10131201231² (a number of 21 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 10131201231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131201271) 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, 6113355 + ... + 6115011.

It is an arithmetic number, because the mean of its divisors is an integer number (436597824).

Almost surely, 2^10131201231 is an apocalyptic number.

10131201231 is a deficient number, since it is larger than the sum of its proper divisors (3839929137).

10131201231 is a wasteful number, since it uses less digits than its factorization.

10131201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10131201231 its reverse (13210213101), we get a palindrome (23341414332).

The spelling of 10131201231 in words is "ten billion, one hundred thirty-one million, two hundred one thousand, two hundred thirty-one".