11421015540240 has 80 divisors (see below), whose sum is σ = 36268688405376. Its totient is φ = 2971321113600.

The previous prime is 11421015540239. The next prime is 11421015540287. The reversal of 11421015540240 is 4204551012411.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 11421015540198 and 11421015540207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580326316 + ... + 580345995.

Almost surely, 2^{11421015540240} is an apocalyptic number.

11421015540240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11421015540240 is an abundant number, since it is smaller than the sum of its proper divisors (24847672865136).

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

11421015540240 is a wasteful number, since it uses less digits than its factorization.

11421015540240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160672368 (or 1160672362 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 11421015540240 its reverse (4204551012411), we get a palindrome (15625566552651).

The spelling of 11421015540240 in words is "eleven trillion, four hundred twenty-one billion, fifteen million, five hundred forty thousand, two hundred forty".