1000231031231 has 2 divisors, whose sum is σ = 1000231031232. Its totient is φ = 1000231031230.

The previous prime is 1000231031197. The next prime is 1000231031249. The reversal of 1000231031231 is 1321301320001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000231031231 - 2³⁰ = 999157289407 is a prime.

It is a super-2 number, since 2×1000231031231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000231031731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500115515615 + 500115515616.

It is an arithmetic number, because the mean of its divisors is an integer number (500115515616).

Almost surely, 2^{1000231031231} is an apocalyptic number.

1000231031231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000231031231 is an equidigital number, since it uses as much as digits as its factorization.

1000231031231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1000231031231 its reverse (1321301320001), we get a palindrome (2321532351232).

The spelling of 1000231031231 in words is "one trillion, two hundred thirty-one million, thirty-one thousand, two hundred thirty-one".