11453320444 has 12 divisors (see below), whose sum is σ = 21222329184. Its totient is φ = 5389797824.

The previous prime is 11453320421. The next prime is 11453320457. The reversal of 11453320444 is 44402335411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84215524 + ... + 84215659.

It is an arithmetic number, because the mean of its divisors is an integer number (1768527432).

Almost surely, 2^11453320444 is an apocalyptic number.

It is an amenable number.

11453320444 is a deficient number, since it is larger than the sum of its proper divisors (9769008740).

11453320444 is a wasteful number, since it uses less digits than its factorization.

11453320444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168431204 (or 168431202 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 11453320444 its reverse (44402335411), we get a palindrome (55855655855).

The spelling of 11453320444 in words is "eleven billion, four hundred fifty-three million, three hundred twenty thousand, four hundred forty-four".