11142032213 has 4 divisors (see below), whose sum is σ = 11999111628. Its totient is φ = 10284952800.

The previous prime is 11142032191. The next prime is 11142032249. The reversal of 11142032213 is 31223024111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31223024111 = 193 ⋅161777327.

It can be written as a sum of positive squares in 2 ways, for example, as 6460462129 + 4681570084 = 80377^2 + 68422^2 .

It is a cyclic number.

It is not a de Polignac number, because 11142032213 - 2¹⁶ = 11141966677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142031213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428539688 + ... + 428539713.

It is an arithmetic number, because the mean of its divisors is an integer number (2999777907).

Almost surely, 2^11142032213 is an apocalyptic number.

11142032213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11142032213 is a deficient number, since it is larger than the sum of its proper divisors (857079415).

11142032213 is an equidigital number, since it uses as much as digits as its factorization.

11142032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857079414.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11142032213 its reverse (31223024111), we get a palindrome (42365056324).

The spelling of 11142032213 in words is "eleven billion, one hundred forty-two million, thirty-two thousand, two hundred thirteen".