11454120520 has 32 divisors (see below), whose sum is σ = 26892285120. Its totient is φ = 4382445760.

The previous prime is 11454120499. The next prime is 11454120523. The reversal of 11454120520 is 2502145411.

It is not an unprimeable number, because it can be changed into a prime (11454120523) 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, 6224146 + ... + 6225985.

It is an arithmetic number, because the mean of its divisors is an integer number (840383910).

Almost surely, 2^11454120520 is an apocalyptic number.

11454120520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11454120520 is an abundant number, since it is smaller than the sum of its proper divisors (15438164600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11454120520 is a wasteful number, since it uses less digits than its factorization.

11454120520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12450165 (or 12450161 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 11454120520 its reverse (2502145411), we get a palindrome (13956265931).

The spelling of 11454120520 in words is "eleven billion, four hundred fifty-four million, one hundred twenty thousand, five hundred twenty".