11020102231 has 4 divisors (see below), whose sum is σ = 11020789512. Its totient is φ = 11019414952.

The previous prime is 11020102211. The next prime is 11020102241. The reversal of 11020102231 is 13220102011.

11020102231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13220102011 = 53 ⋅249435887.

It is a cyclic number.

It is not a de Polignac number, because 11020102231 - 2¹¹ = 11020100183 is a prime.

It is a super-2 number, since 2×11020102231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319000 + ... + 351853.

It is an arithmetic number, because the mean of its divisors is an integer number (2755197378).

Almost surely, 2^11020102231 is an apocalyptic number.

11020102231 is a deficient number, since it is larger than the sum of its proper divisors (687281).

11020102231 is an equidigital number, since it uses as much as digits as its factorization.

11020102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687280.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11020102231 its reverse (13220102011), we get a palindrome (24240204242).

The spelling of 11020102231 in words is "eleven billion, twenty million, one hundred two thousand, two hundred thirty-one".