11011021101 has 6 divisors (see below), whose sum is σ = 15904808270. Its totient is φ = 7340680728.

The previous prime is 11011021097. The next prime is 11011021117. The reversal of 11011021101 is 10112011011.

It can be written as a sum of positive squares in only one way, i.e., 8326745001 + 2684276100 = 91251^2 + 51810^2 .

It is not a de Polignac number, because 11011021101 - 2² = 11011021097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1223446789 = 11011021101 / (1 + 1 + 0 + 1 + 1 + 0 + 2 + 1 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011021121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611723386 + ... + 611723403.

Almost surely, 2^11011021101 is an apocalyptic number.

It is an amenable number.

11011021101 is a deficient number, since it is larger than the sum of its proper divisors (4893787169).

11011021101 is a wasteful number, since it uses less digits than its factorization.

11011021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223446795 (or 1223446792 counting only the distinct ones).

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

Adding to 11011021101 its reverse (10112011011), we get a palindrome (21123032112).

The spelling of 11011021101 in words is "eleven billion, eleven million, twenty-one thousand, one hundred one".