1001011103231 has 2 divisors, whose sum is σ = 1001011103232. Its totient is φ = 1001011103230.

The previous prime is 1001011103203. The next prime is 1001011103317. The reversal of 1001011103231 is 1323011101001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001011103231 - 2⁶ = 1001011103167 is a prime.

It is a super-2 number, since 2×1001011103231² (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 (1001011133231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500505551615 + 500505551616.

It is an arithmetic number, because the mean of its divisors is an integer number (500505551616).

Almost surely, 2^{1001011103231} is an apocalyptic number.

1001011103231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001011103231 is an equidigital number, since it uses as much as digits as its factorization.

1001011103231 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 14.

Adding to 1001011103231 its reverse (1323011101001), we get a palindrome (2324022204232).

The spelling of 1001011103231 in words is "one trillion, one billion, eleven million, one hundred three thousand, two hundred thirty-one".