11023412521 has 8 divisors (see below), whose sum is σ = 12046608288. Its totient is φ = 10003728000.

The previous prime is 11023412513. The next prime is 11023412537. The reversal of 11023412521 is 12521432011.

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 11023412521 - 2³ = 11023412513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11023412492 and 11023412501.

It is not an unprimeable number, because it can be changed into a prime (11023412921) 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, 871240 + ... + 883801.

It is an arithmetic number, because the mean of its divisors is an integer number (1505826036).

Almost surely, 2^11023412521 is an apocalyptic number.

11023412521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11023412521 is a deficient number, since it is larger than the sum of its proper divisors (1023195767).

11023412521 is a wasteful number, since it uses less digits than its factorization.

11023412521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755623.

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

Adding to 11023412521 its reverse (12521432011), we get a palindrome (23544844532).

The spelling of 11023412521 in words is "eleven billion, twenty-three million, four hundred twelve thousand, five hundred twenty-one".