13511222040 has 64 divisors (see below), whose sum is σ = 40581272160. Its totient is φ = 3598760960.

The previous prime is 13511222029. The next prime is 13511222047. The reversal of 13511222040 is 4022211531.

It is a junction number, because it is equal to n+sod(n) for n = 13511221998 and 13511222016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13511222047) 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, 37150 + ... + 168530.

Almost surely, 2^13511222040 is an apocalyptic number.

13511222040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13511222040 is an abundant number, since it is smaller than the sum of its proper divisors (27070050120).

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

13511222040 is a wasteful number, since it uses less digits than its factorization.

13511222040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132252 (or 132248 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 13511222040 its reverse (4022211531), we get a palindrome (17533433571).

The spelling of 13511222040 in words is "thirteen billion, five hundred eleven million, two hundred twenty-two thousand, forty".