11123641013 has 4 divisors (see below), whose sum is σ = 11222080428. Its totient is φ = 11025201600.

The previous prime is 11123641003. The next prime is 11123641027. The reversal of 11123641013 is 31014632111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3723684484 + 7399956529 = 61022^2 + 86023^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123641013 - 2³² = 6828673717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11123641013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123641003) 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, 49219538 + ... + 49219763.

It is an arithmetic number, because the mean of its divisors is an integer number (2805520107).

Almost surely, 2^11123641013 is an apocalyptic number.

It is an amenable number.

11123641013 is a deficient number, since it is larger than the sum of its proper divisors (98439415).

11123641013 is an equidigital number, since it uses as much as digits as its factorization.

11123641013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98439414.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 11123641013 in words is "eleven billion, one hundred twenty-three million, six hundred forty-one thousand, thirteen".