250312044030121 has 16 divisors (see below), whose sum is σ = 254616427674000. Its totient is φ = 246043188154368.

The previous prime is 250312044030079. The next prime is 250312044030173. The reversal of 250312044030121 is 121030440213052.

It can be written as a sum of positive squares in 8 ways, for example, as 15666753515625 + 234645290514496 = 3958125^2 + 15318136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250312044030121 is a prime.

It is a super-2 number, since 2×250312044030121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 250312044030121.

It is not an unprimeable number, because it can be changed into a prime (250312044030721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138268621 + ... + 140067253.

It is an arithmetic number, because the mean of its divisors is an integer number (15913526729625).

Almost surely, 2^{250312044030121} is an apocalyptic number.

It is an amenable number.

250312044030121 is a deficient number, since it is larger than the sum of its proper divisors (4304383643879).

250312044030121 is a wasteful number, since it uses less digits than its factorization.

250312044030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808508.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 250312044030121 its reverse (121030440213052), we get a palindrome (371342484243173).

The spelling of 250312044030121 in words is "two hundred fifty trillion, three hundred twelve billion, forty-four million, thirty thousand, one hundred twenty-one".