13512124322040 has 128 divisors (see below), whose sum is σ = 41090828463360. Its totient is φ = 3554237297664.

The previous prime is 13512124322017. The next prime is 13512124322077. The reversal of 13512124322040 is 4022342121531.

It is a happy number.

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 = 13512124321989 and 13512124322007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 733467 + ... + 5249973.

It is an arithmetic number, because the mean of its divisors is an integer number (321022097370).

Almost surely, 2^{13512124322040} is an apocalyptic number.

13512124322040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13512124322040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20545414231680).

13512124322040 is an abundant number, since it is smaller than the sum of its proper divisors (27578704141320).

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

13512124322040 is a wasteful number, since it uses less digits than its factorization.

13512124322040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516861 (or 4516857 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 13512124322040 its reverse (4022342121531), we get a palindrome (17534466443571).

The spelling of 13512124322040 in words is "thirteen trillion, five hundred twelve billion, one hundred twenty-four million, three hundred twenty-two thousand, forty".