11234018520 has 128 divisors (see below), whose sum is σ = 37656576000. Its totient is φ = 2978951040.

The previous prime is 11234018513. The next prime is 11234018533. The reversal of 11234018520 is 2581043211.

11234018520 is a `hidden beast` number, since 1 + 123 + 4 + 0 + 18 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164265 + ... + 222375.

It is an arithmetic number, because the mean of its divisors is an integer number (294192000).

Almost surely, 2^11234018520 is an apocalyptic number.

11234018520 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 11234018520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18828288000).

11234018520 is an abundant number, since it is smaller than the sum of its proper divisors (26422557480).

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

11234018520 is a wasteful number, since it uses less digits than its factorization.

11234018520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58310 (or 58300 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 11234018520 in words is "eleven billion, two hundred thirty-four million, eighteen thousand, five hundred twenty".