11001001011031 has 2 divisors, whose sum is σ = 11001001011032. Its totient is φ = 11001001011030.

The previous prime is 11001001010969. The next prime is 11001001011041. The reversal of 11001001011031 is 13011010010011.

11001001011031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (11001001011041) can be obtained adding 11001001011031 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001001011031 is a prime.

It is a super-2 number, since 2×11001001011031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11001001010999 and 11001001011017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11001001011041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500500505515 + 5500500505516.

It is an arithmetic number, because the mean of its divisors is an integer number (5500500505516).

Almost surely, 2^{11001001011031} is an apocalyptic number.

11001001011031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001001011031 is an equidigital number, since it uses as much as digits as its factorization.

11001001011031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3, while the sum is 10.

Adding to 11001001011031 its reverse (13011010010011), we get a palindrome (24012011021042).

The spelling of 11001001011031 in words is "eleven trillion, one billion, one million, eleven thousand, thirty-one".