210251520213142 has 16 divisors (see below), whose sum is σ = 335659086531792. Its totient is φ = 98429239572480.

The previous prime is 210251520213139. The next prime is 210251520213187. The reversal of 210251520213142 is 241312025152012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16020377484 + ... + 16020390607.

It is an arithmetic number, because the mean of its divisors is an integer number (20978692908237).

Almost surely, 2^{210251520213142} is an apocalyptic number.

210251520213142 is a deficient number, since it is larger than the sum of its proper divisors (125407566318650).

210251520213142 is a wasteful number, since it uses less digits than its factorization.

210251520213142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32040768303.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 210251520213142 its reverse (241312025152012), we get a palindrome (451563545365154).

The spelling of 210251520213142 in words is "two hundred ten trillion, two hundred fifty-one billion, five hundred twenty million, two hundred thirteen thousand, one hundred forty-two".