13051521240 has 32 divisors (see below), whose sum is σ = 39154564080. Its totient is φ = 3480405632.

The previous prime is 13051521239. The next prime is 13051521251. The reversal of 13051521240 is 4212515031.

It is a happy number.

13051521240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13051521240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13051521240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54381219 + ... + 54381458.

Almost surely, 2^13051521240 is an apocalyptic number.

13051521240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13051521240 is an abundant number, since it is smaller than the sum of its proper divisors (26103042840).

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

13051521240 is a wasteful number, since it uses less digits than its factorization.

13051521240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108762691 (or 108762687 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 13051521240 in words is "thirteen billion, fifty-one million, five hundred twenty-one thousand, two hundred forty".