11102021011 has 4 divisors (see below), whose sum is σ = 11338234272. Its totient is φ = 10865807752.

The previous prime is 11102020999. The next prime is 11102021023. The reversal of 11102021011 is 11012020111.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11102020999) and next prime (11102021023).

It is a cyclic number.

It is not a de Polignac number, because 11102021011 - 2³¹ = 8954537363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11102031011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118106560 + ... + 118106653.

It is an arithmetic number, because the mean of its divisors is an integer number (2834558568).

Almost surely, 2^11102021011 is an apocalyptic number.

11102021011 is a deficient number, since it is larger than the sum of its proper divisors (236213261).

11102021011 is an equidigital number, since it uses as much as digits as its factorization.

11102021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236213260.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11102021011 its reverse (11012020111), we get a palindrome (22114041122).

The spelling of 11102021011 in words is "eleven billion, one hundred two million, twenty-one thousand, eleven".