11023542013 has 6 divisors (see below), whose sum is σ = 12116785982. Its totient is φ = 10021401720.

The previous prime is 11023541941. The next prime is 11023542029. The reversal of 11023542013 is 31024532011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10639303609 + 384238404 = 103147^2 + 19602^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11023542013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023552013) 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 5 ways as a sum of consecutive naturals, for example, 45551706 + ... + 45551947.

Almost surely, 2^11023542013 is an apocalyptic number.

It is an amenable number.

11023542013 is a deficient number, since it is larger than the sum of its proper divisors (1093243969).

11023542013 is an equidigital number, since it uses as much as digits as its factorization.

11023542013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91103675 (or 91103664 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 11023542013 in words is "eleven billion, twenty-three million, five hundred forty-two thousand, thirteen".