11342543520 has 384 divisors, whose sum is σ = 45461606400. Its totient is φ = 2356515840.

The previous prime is 11342543519. The next prime is 11342543521. The reversal of 11342543520 is 2534524311.

It is an interprime number because it is at equal distance from previous prime (11342543519) and next prime (11342543521).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11342543521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1807909 + ... + 1814171.

It is an arithmetic number, because the mean of its divisors is an integer number (118389600).

Almost surely, 2^11342543520 is an apocalyptic number.

11342543520 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 11342543520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22730803200).

11342543520 is an abundant number, since it is smaller than the sum of its proper divisors (34119062880).

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

11342543520 is a wasteful number, since it uses less digits than its factorization.

11342543520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313 (or 6291 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 11342543520 in words is "eleven billion, three hundred forty-two million, five hundred forty-three thousand, five hundred twenty".