10001311231 has 2 divisors, whose sum is σ = 10001311232. Its totient is φ = 10001311230.

The previous prime is 10001311217. The next prime is 10001311247. The reversal of 10001311231 is 13211310001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001311231 is a prime.

It is a super-2 number, since 2×10001311231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10001311211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000655615 + 5000655616.

It is an arithmetic number, because the mean of its divisors is an integer number (5000655616).

Almost surely, 2^10001311231 is an apocalyptic number.

10001311231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001311231 is an equidigital number, since it uses as much as digits as its factorization.

10001311231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10001311231 its reverse (13211310001), we get a palindrome (23212621232).

The spelling of 10001311231 in words is "ten billion, one million, three hundred eleven thousand, two hundred thirty-one".