11440320623 has 4 divisors (see below), whose sum is σ = 11447833848. Its totient is φ = 11432807400.

The previous prime is 11440320613. The next prime is 11440320649. The reversal of 11440320623 is 32602304411.

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

It is a cyclic number.

It is not a de Polignac number, because 11440320623 - 2⁶ = 11440320559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11440320592 and 11440320601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11440320613) 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, 3754328 + ... + 3757373.

It is an arithmetic number, because the mean of its divisors is an integer number (2861958462).

Almost surely, 2^11440320623 is an apocalyptic number.

11440320623 is a deficient number, since it is larger than the sum of its proper divisors (7513225).

11440320623 is an equidigital number, since it uses as much as digits as its factorization.

11440320623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513224.

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 11440320623 in words is "eleven billion, four hundred forty million, three hundred twenty thousand, six hundred twenty-three".