11102012311 has 16 divisors (see below), whose sum is σ = 12021914016. Its totient is φ = 10191678336.

The previous prime is 11102012309. The next prime is 11102012351. The reversal of 11102012311 is 11321020111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11102012311 - 2¹ = 11102012309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11102012291 and 11102012300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102012351) 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 15 ways as a sum of consecutive naturals, for example, 1989321 + ... + 1994893.

It is an arithmetic number, because the mean of its divisors is an integer number (751369626).

Almost surely, 2^11102012311 is an apocalyptic number.

11102012311 is a deficient number, since it is larger than the sum of its proper divisors (919901705).

11102012311 is a wasteful number, since it uses less digits than its factorization.

11102012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11102012311 its reverse (11321020111), we get a palindrome (22423032422).

The spelling of 11102012311 in words is "eleven billion, one hundred two million, twelve thousand, three hundred eleven".