1101021020111 has 2 divisors, whose sum is σ = 1101021020112. Its totient is φ = 1101021020110.

The previous prime is 1101021020089. The next prime is 1101021020149. The reversal of 1101021020111 is 1110201201011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101021020111 - 2¹⁴ = 1101021003727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101021020092 and 1101021020101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101021070111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550510510055 + 550510510056.

It is an arithmetic number, because the mean of its divisors is an integer number (550510510056).

Almost surely, 2^{1101021020111} is an apocalyptic number.

1101021020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101021020111 is an equidigital number, since it uses as much as digits as its factorization.

1101021020111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1101021020111 its reverse (1110201201011), we get a palindrome (2211222221122).

The spelling of 1101021020111 in words is "one trillion, one hundred one billion, twenty-one million, twenty thousand, one hundred eleven".