11530526420 has 96 divisors (see below), whose sum is σ = 29334638592. Its totient is φ = 3716517888.

The previous prime is 11530526419. The next prime is 11530526429. The reversal of 11530526420 is 2462503511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530526429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2584832 + ... + 2589288.

It is an arithmetic number, because the mean of its divisors is an integer number (305569152).

Almost surely, 2^11530526420 is an apocalyptic number.

11530526420 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 11530526420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14667319296).

11530526420 is an abundant number, since it is smaller than the sum of its proper divisors (17804112172).

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

11530526420 is a wasteful number, since it uses less digits than its factorization.

11530526420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577 (or 5575 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 11530526420 in words is "eleven billion, five hundred thirty million, five hundred twenty-six thousand, four hundred twenty".