11442638923 has 2 divisors, whose sum is σ = 11442638924. Its totient is φ = 11442638922.

The previous prime is 11442638917. The next prime is 11442638929. The reversal of 11442638923 is 32983624411.

It is a balanced prime because it is at equal distance from previous prime (11442638917) and next prime (11442638929).

It is a cyclic number.

It is not a de Polignac number, because 11442638923 - 2¹⁷ = 11442507851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11442638923.

It is not a weakly prime, because it can be changed into another prime (11442638929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721319461 + 5721319462.

It is an arithmetic number, because the mean of its divisors is an integer number (5721319462).

Almost surely, 2^11442638923 is an apocalyptic number.

11442638923 is a deficient number, since it is larger than the sum of its proper divisors (1).

11442638923 is an equidigital number, since it uses as much as digits as its factorization.

11442638923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The spelling of 11442638923 in words is "eleven billion, four hundred forty-two million, six hundred thirty-eight thousand, nine hundred twenty-three".