15005142121 has 8 divisors (see below), whose sum is σ = 15339818880. Its totient is φ = 14671107888.

The previous prime is 15005142091. The next prime is 15005142127. The reversal of 15005142121 is 12124150051.

15005142121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15005142121 - 2⁹ = 15005141609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15005142092 and 15005142101.

It is not an unprimeable number, because it can be changed into a prime (15005142127) 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, 113251 + ... + 206968.

It is an arithmetic number, because the mean of its divisors is an integer number (1917477360).

Almost surely, 2^15005142121 is an apocalyptic number.

It is an amenable number.

15005142121 is a deficient number, since it is larger than the sum of its proper divisors (334676759).

15005142121 is an equidigital number, since it uses as much as digits as its factorization.

15005142121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321263.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 15005142121 its reverse (12124150051), we get a palindrome (27129292172).

The spelling of 15005142121 in words is "fifteen billion, five million, one hundred forty-two thousand, one hundred twenty-one".