11230054520 has 64 divisors (see below), whose sum is σ = 26528325120. Its totient is φ = 4270299264.

The previous prime is 11230054489. The next prime is 11230054553. The reversal of 11230054520 is 2545003211.

It is a super-2 number, since 2×11230054520² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112517 + ... + 187403.

It is an arithmetic number, because the mean of its divisors is an integer number (414505080).

Almost surely, 2^11230054520 is an apocalyptic number.

11230054520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11230054520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13264162560).

11230054520 is an abundant number, since it is smaller than the sum of its proper divisors (15298270600).

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

11230054520 is a wasteful number, since it uses less digits than its factorization.

11230054520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75084 (or 75080 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 11230054520 its reverse (2545003211), we get a palindrome (13775057731).

The spelling of 11230054520 in words is "eleven billion, two hundred thirty million, fifty-four thousand, five hundred twenty".