13240421124 has 72 divisors (see below), whose sum is σ = 36527537088. Its totient is φ = 3720951360.

The previous prime is 13240421123. The next prime is 13240421167. The reversal of 13240421124 is 42112404231.

It is a junction number, because it is equal to n+sod(n) for n = 13240421094 and 13240421103.

It is not an unprimeable number, because it can be changed into a prime (13240421123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148704 + ... + 220439.

It is an arithmetic number, because the mean of its divisors is an integer number (507326904).

Almost surely, 2^13240421124 is an apocalyptic number.

13240421124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13240421124 is an abundant number, since it is smaller than the sum of its proper divisors (23287115964).

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

13240421124 is a wasteful number, since it uses less digits than its factorization.

13240421124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369225 (or 369216 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 13240421124 its reverse (42112404231), we get a palindrome (55352825355).

The spelling of 13240421124 in words is "thirteen billion, two hundred forty million, four hundred twenty-one thousand, one hundred twenty-four".