15121205052 has 24 divisors (see below), whose sum is σ = 35285250000. Its totient is φ = 5040053376.

The previous prime is 15121205051. The next prime is 15121205053. The reversal of 15121205052 is 25050212151.

15121205052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15121205051) and next prime (15121205053).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15121205051) by changing a digit.

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, 185574 + ... + 254322.

It is an arithmetic number, because the mean of its divisors is an integer number (1470218750).

Almost surely, 2^15121205052 is an apocalyptic number.

15121205052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15121205052 is an abundant number, since it is smaller than the sum of its proper divisors (20164044948).

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

15121205052 is a wasteful number, since it uses less digits than its factorization.

15121205052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87085 (or 87083 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The spelling of 15121205052 in words is "fifteen billion, one hundred twenty-one million, two hundred five thousand, fifty-two".