11534503240 has 64 divisors (see below), whose sum is σ = 28263135600. Its totient is φ = 4211023872.

The previous prime is 11534503231. The next prime is 11534503241. The reversal of 11534503240 is 4230543511.

It can be written as a sum of positive squares in 8 ways, for example, as 478821924 + 11055681316 = 21882^2 + 105146^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11534503199 and 11534503208.

It is not an unprimeable number, because it can be changed into a prime (11534503241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78337 + ... + 170896.

Almost surely, 2^11534503240 is an apocalyptic number.

11534503240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11534503240 is an abundant number, since it is smaller than the sum of its proper divisors (16728632360).

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

11534503240 is a wasteful number, since it uses less digits than its factorization.

11534503240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249346 (or 249342 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 11534503240 in words is "eleven billion, five hundred thirty-four million, five hundred three thousand, two hundred forty".