121050253015 has 4 divisors (see below), whose sum is σ = 145260303624. Its totient is φ = 96840202408.

The previous prime is 121050253003. The next prime is 121050253021. The reversal of 121050253015 is 510352050121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121050253015 - 2¹⁷ = 121050121943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12105025297 + ... + 12105025306.

It is an arithmetic number, because the mean of its divisors is an integer number (36315075906).

Almost surely, 2^121050253015 is an apocalyptic number.

121050253015 is a deficient number, since it is larger than the sum of its proper divisors (24210050609).

121050253015 is an equidigital number, since it uses as much as digits as its factorization.

121050253015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24210050608.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 121050253015 in words is "one hundred twenty-one billion, fifty million, two hundred fifty-three thousand, fifteen".