150205054005121 has 4 divisors (see below), whose sum is σ = 151753559716612. Its totient is φ = 148656548293632.

The previous prime is 150205054005079. The next prime is 150205054005187. The reversal of 150205054005121 is 121500450502051.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38579489915121 + 111625564090000 = 6211239^2 + 10565300^2 .

It is a cyclic number.

It is not a de Polignac number, because 150205054005121 - 2¹¹ = 150205054003073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150245054005121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774252855600 + ... + 774252855793.

It is an arithmetic number, because the mean of its divisors is an integer number (37938389929153).

Almost surely, 2^{150205054005121} is an apocalyptic number.

It is an amenable number.

150205054005121 is a deficient number, since it is larger than the sum of its proper divisors (1548505711491).

150205054005121 is an equidigital number, since it uses as much as digits as its factorization.

150205054005121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548505711490.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 150205054005121 in words is "one hundred fifty trillion, two hundred five billion, fifty-four million, five thousand, one hundred twenty-one".