203125012152642 has 32 divisors (see below), whose sum is σ = 477941205067200. Its totient is φ = 63725494008384.

The previous prime is 203125012152617. The next prime is 203125012152679. The reversal of 203125012152642 is 246251210521302.

203125012152642 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 2 + 5 + 0 + 1 + 2 + 1 + 5 + 2 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 203125012152597 and 203125012152606.

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 15 ways as a sum of consecutive naturals, for example, 110634537292 + ... + 110634539127.

It is an arithmetic number, because the mean of its divisors is an integer number (14935662658350).

Almost surely, 2^{203125012152642} is an apocalyptic number.

203125012152642 is an abundant number, since it is smaller than the sum of its proper divisors (274816192914558).

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

203125012152642 is a wasteful number, since it uses less digits than its factorization.

203125012152642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221269076447 (or 221269076441 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 203125012152642 its reverse (246251210521302), we get a palindrome (449376222673944).

The spelling of 203125012152642 in words is "two hundred three trillion, one hundred twenty-five billion, twelve million, one hundred fifty-two thousand, six hundred forty-two".