11020143213 has 24 divisors (see below), whose sum is σ = 15982363800. Its totient is φ = 7317108864.

The previous prime is 11020143193. The next prime is 11020143217. The reversal of 11020143213 is 31234102011.

It can be written as a sum of positive squares in 4 ways, for example, as 20958084 + 10999185129 = 4578^2 + 104877^2 .

It is not a de Polignac number, because 11020143213 - 2⁶ = 11020143149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020143217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2900431 + ... + 2904227.

It is an arithmetic number, because the mean of its divisors is an integer number (665931825).

Almost surely, 2^11020143213 is an apocalyptic number.

It is an amenable number.

11020143213 is a deficient number, since it is larger than the sum of its proper divisors (4962220587).

11020143213 is a wasteful number, since it uses less digits than its factorization.

11020143213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11020143213 its reverse (31234102011), we get a palindrome (42254245224).

The spelling of 11020143213 in words is "eleven billion, twenty million, one hundred forty-three thousand, two hundred thirteen".