11001434240 has 64 divisors (see below), whose sum is σ = 26319078360. Its totient is φ = 4397432832.

The previous prime is 11001434239. The next prime is 11001434261. The reversal of 11001434240 is 4243410011.

It can be written as a sum of positive squares in 4 ways, for example, as 6688622656 + 4312811584 = 81784^2 + 65672^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1026992 + ... + 1037648.

Almost surely, 2^11001434240 is an apocalyptic number.

11001434240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001434240 is an abundant number, since it is smaller than the sum of its proper divisors (15317644120).

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

11001434240 is a wasteful number, since it uses less digits than its factorization.

11001434240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12289 (or 12277 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11001434240 its reverse (4243410011), we get a palindrome (15244844251).

The spelling of 11001434240 in words is "eleven billion, one million, four hundred thirty-four thousand, two hundred forty".