15135310125012 has 192 divisors, whose sum is σ = 44172795340800. Its totient is φ = 3918507840000.

The previous prime is 15135310124989. The next prime is 15135310125059. The reversal of 15135310125012 is 21052101353151.

It is a super-2 number, since 2×15135310125012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1048362258 + ... + 1048376694.

It is an arithmetic number, because the mean of its divisors is an integer number (230066642400).

Almost surely, 2^{15135310125012} is an apocalyptic number.

15135310125012 is a gapful number since it is divisible by the number (12) 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 15135310125012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22086397670400).

15135310125012 is an abundant number, since it is smaller than the sum of its proper divisors (29037485215788).

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

15135310125012 is a wasteful number, since it uses less digits than its factorization.

15135310125012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18062 (or 18060 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 15135310125012 its reverse (21052101353151), we get a palindrome (36187411478163).

The spelling of 15135310125012 in words is "fifteen trillion, one hundred thirty-five billion, three hundred ten million, one hundred twenty-five thousand, twelve".