11142553211 has 4 divisors (see below), whose sum is σ = 11729003400. Its totient is φ = 10556103024.

The previous prime is 11142553189. The next prime is 11142553223. The reversal of 11142553211 is 11235524111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11142553211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142553241) 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, 293225066 + ... + 293225103.

It is an arithmetic number, because the mean of its divisors is an integer number (2932250850).

Almost surely, 2^11142553211 is an apocalyptic number.

11142553211 is a deficient number, since it is larger than the sum of its proper divisors (586450189).

11142553211 is an equidigital number, since it uses as much as digits as its factorization.

11142553211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586450188.

The product of its digits is 1200, while the sum is 26.

The spelling of 11142553211 in words is "eleven billion, one hundred forty-two million, five hundred fifty-three thousand, two hundred eleven".