11242143240 has 32 divisors (see below), whose sum is σ = 33726430080. Its totient is φ = 2997904832.

The previous prime is 11242143223. The next prime is 11242143257. The reversal of 11242143240 is 4234124211.

It is an interprime number because it is at equal distance from previous prime (11242143223) and next prime (11242143257).

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

It is a self number, because there is not a number n which added to its sum of digits gives 11242143240.

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, 46842144 + ... + 46842383.

It is an arithmetic number, because the mean of its divisors is an integer number (1053950940).

Almost surely, 2^11242143240 is an apocalyptic number.

11242143240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11242143240 is an abundant number, since it is smaller than the sum of its proper divisors (22484286840).

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

11242143240 is a wasteful number, since it uses less digits than its factorization.

11242143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93684541 (or 93684537 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11242143240 its reverse (4234124211), we get a palindrome (15476267451).

The spelling of 11242143240 in words is "eleven billion, two hundred forty-two million, one hundred forty-three thousand, two hundred forty".