11054231520 has 48 divisors (see below), whose sum is σ = 34820830800. Its totient is φ = 2947794944.

The previous prime is 11054231519. The next prime is 11054231543. The reversal of 11054231520 is 2513245011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11514345 + ... + 11515304.

It is an arithmetic number, because the mean of its divisors is an integer number (725433975).

Almost surely, 2^11054231520 is an apocalyptic number.

11054231520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11054231520 is an abundant number, since it is smaller than the sum of its proper divisors (23766599280).

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

11054231520 is a wasteful number, since it uses less digits than its factorization.

11054231520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23029667 (or 23029659 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 11054231520 its reverse (2513245011), we get a palindrome (13567476531).

The spelling of 11054231520 in words is "eleven billion, fifty-four million, two hundred thirty-one thousand, five hundred twenty".