11553442813 has 4 divisors (see below), whose sum is σ = 12603755808. Its totient is φ = 10503129820.

The previous prime is 11553442799. The next prime is 11553442819. The reversal of 11553442813 is 31824435511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11553442813 is a prime.

It is a super-2 number, since 2×11553442813² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553442819) 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, 525156481 + ... + 525156502.

It is an arithmetic number, because the mean of its divisors is an integer number (3150938952).

Almost surely, 2^11553442813 is an apocalyptic number.

It is an amenable number.

11553442813 is a deficient number, since it is larger than the sum of its proper divisors (1050312995).

11553442813 is a wasteful number, since it uses less digits than its factorization.

11553442813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050312994.

The product of its digits is 57600, while the sum is 37.

The spelling of 11553442813 in words is "eleven billion, five hundred fifty-three million, four hundred forty-two thousand, eight hundred thirteen".