1131011021011 has 2 divisors, whose sum is σ = 1131011021012. Its totient is φ = 1131011021010.

The previous prime is 1131011020943. The next prime is 1131011021029. The reversal of 1131011021011 is 1101201101311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131011021011 - 2⁹ = 1131011020499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131011020982 and 1131011021000.

It is not a weakly prime, because it can be changed into another prime (1131011021081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565505510505 + 565505510506.

It is an arithmetic number, because the mean of its divisors is an integer number (565505510506).

Almost surely, 2^{1131011021011} is an apocalyptic number.

1131011021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131011021011 is an equidigital number, since it uses as much as digits as its factorization.

1131011021011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 1131011021011 its reverse (1101201101311), we get a palindrome (2232212122322).

The spelling of 1131011021011 in words is "one trillion, one hundred thirty-one billion, eleven million, twenty-one thousand, eleven".