201243500130402 has 48 divisors (see below), whose sum is σ = 478931899642560. Its totient is φ = 60787510334496.

The previous prime is 201243500130377. The next prime is 201243500130419. The reversal of 201243500130402 is 204031005342102.

201243500130402 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 4 + 350 + 0 + 1 + 304 + 0 + 2 = 666.

201243500130402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12791976633 + ... + 12791992364.

It is an arithmetic number, because the mean of its divisors is an integer number (9977747909220).

Almost surely, 2^{201243500130402} is an apocalyptic number.

201243500130402 is an abundant number, since it is smaller than the sum of its proper divisors (277688399512158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201243500130402 is a wasteful number, since it uses less digits than its factorization.

201243500130402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25583969047 (or 25583969044 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 201243500130402 its reverse (204031005342102), we get a palindrome (405274505472504).

The spelling of 201243500130402 in words is "two hundred one trillion, two hundred forty-three billion, five hundred million, one hundred thirty thousand, four hundred two".