11011211211031 has 2 divisors, whose sum is σ = 11011211211032. Its totient is φ = 11011211211030.

The previous prime is 11011211210999. The next prime is 11011211211043. The reversal of 11011211211031 is 13011211211011.

11011211211031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11011211211031 - 2⁵ = 11011211210999 is a prime.

It is a super-2 number, since 2×11011211211031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11011211210996 and 11011211211014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011211211131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505605605515 + 5505605605516.

It is an arithmetic number, because the mean of its divisors is an integer number (5505605605516).

Almost surely, 2^{11011211211031} is an apocalyptic number.

11011211211031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011211211031 is an equidigital number, since it uses as much as digits as its factorization.

11011211211031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 11011211211031 its reverse (13011211211011), we get a palindrome (24022422422042).

The spelling of 11011211211031 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred eleven thousand, thirty-one".