11101021011 has 24 divisors (see below), whose sum is σ = 16367809536. Its totient is φ = 7248032640.

The previous prime is 11101020991. The next prime is 11101021021. The reversal of 11101021011 is 11012010111.

It is not a de Polignac number, because 11101021011 - 2¹⁰ = 11101019987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11101020984 and 11101021002.

It is not an unprimeable number, because it can be changed into a prime (11101021021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84526 + ... + 171308.

It is an arithmetic number, because the mean of its divisors is an integer number (681992064).

Almost surely, 2^11101021011 is an apocalyptic number.

11101021011 is a deficient number, since it is larger than the sum of its proper divisors (5266788525).

11101021011 is a wasteful number, since it uses less digits than its factorization.

11101021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87083 (or 87080 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11101021011 its reverse (11012010111), we get a palindrome (22113031122).

It can be divided in two parts, 1110 and 1021011, that added together give a square (1022121 = 1011²).

The spelling of 11101021011 in words is "eleven billion, one hundred one million, twenty-one thousand, eleven".