11120421523 has 8 divisors (see below), whose sum is σ = 11171689776. Its totient is φ = 11069184000.

The previous prime is 11120421443. The next prime is 11120421527. The reversal of 11120421523 is 32512402111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11120421523 - 2²⁵ = 11086867091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120421494 and 11120421503.

It is not an unprimeable number, because it can be changed into a prime (11120421527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038748 + ... + 1049398.

It is an arithmetic number, because the mean of its divisors is an integer number (1396461222).

Almost surely, 2^11120421523 is an apocalyptic number.

11120421523 is a deficient number, since it is larger than the sum of its proper divisors (51268253).

11120421523 is a wasteful number, since it uses less digits than its factorization.

11120421523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15365.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 11120421523 its reverse (32512402111), we get a palindrome (43632823634).

The spelling of 11120421523 in words is "eleven billion, one hundred twenty million, four hundred twenty-one thousand, five hundred twenty-three".