251010201241 has 4 divisors (see below), whose sum is σ = 257794260772. Its totient is φ = 244226141712.

The previous prime is 251010201209. The next prime is 251010201251. The reversal of 251010201241 is 142102010152.

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 237670875225 + 13339326016 = 487515^2 + 115496^2 .

It is a cyclic number.

It is not a de Polignac number, because 251010201241 - 2⁵ = 251010201209 is a prime.

It is a super-2 number, since 2×251010201241² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251010201251) 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 3 ways as a sum of consecutive naturals, for example, 3392029710 + ... + 3392029783.

It is an arithmetic number, because the mean of its divisors is an integer number (64448565193).

Almost surely, 2^251010201241 is an apocalyptic number.

It is an amenable number.

251010201241 is a deficient number, since it is larger than the sum of its proper divisors (6784059531).

251010201241 is an equidigital number, since it uses as much as digits as its factorization.

251010201241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784059530.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 251010201241 its reverse (142102010152), we get a palindrome (393112211393).

The spelling of 251010201241 in words is "two hundred fifty-one billion, ten million, two hundred one thousand, two hundred forty-one".