11415331240 has 32 divisors (see below), whose sum is σ = 25687697760. Its totient is φ = 4565563200.

The previous prime is 11415331201. The next prime is 11415331243. The reversal of 11415331240 is 4213351411.

It is not an unprimeable number, because it can be changed into a prime (11415331243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476755 + ... + 500125.

It is an arithmetic number, because the mean of its divisors is an integer number (802740555).

Almost surely, 2^11415331240 is an apocalyptic number.

11415331240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11415331240 is an abundant number, since it is smaller than the sum of its proper divisors (14272366520).

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

11415331240 is a wasteful number, since it uses less digits than its factorization.

11415331240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35593 (or 35589 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 11415331240 its reverse (4213351411), we get a palindrome (15628682651).

The spelling of 11415331240 in words is "eleven billion, four hundred fifteen million, three hundred thirty-one thousand, two hundred forty".