251241201002 has 24 divisors (see below), whose sum is σ = 416318196000. Its totient is φ = 113626652040.

The previous prime is 251241200989. The next prime is 251241201037. The reversal of 251241201002 is 200102142152.

251241201002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2560352 + ... + 2656667.

It is an arithmetic number, because the mean of its divisors is an integer number (17346591500).

Almost surely, 2^251241201002 is an apocalyptic number.

251241201002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

251241201002 is a deficient number, since it is larger than the sum of its proper divisors (165076994998).

251241201002 is a wasteful number, since it uses less digits than its factorization.

251241201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217242 (or 5217231 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 251241201002 its reverse (200102142152), we get a palindrome (451343343154).

The spelling of 251241201002 in words is "two hundred fifty-one billion, two hundred forty-one million, two hundred one thousand, two".