203155012 has 24 divisors (see below), whose sum is σ = 366799104. Its totient is φ = 98380512.

The previous prime is 203154979. The next prime is 203155039. The reversal of 203155012 is 210551302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30573 + ... + 36619.

It is an arithmetic number, because the mean of its divisors is an integer number (15283296).

Almost surely, 2^203155012 is an apocalyptic number.

It is an amenable number.

203155012 is a deficient number, since it is larger than the sum of its proper divisors (163644092).

203155012 is a wasteful number, since it uses less digits than its factorization.

203155012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315 (or 6313 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 203155012 is about 14253.2456654616. The cubic root of 203155012 is about 587.8626215841.

The spelling of 203155012 in words is "two hundred three million, one hundred fifty-five thousand, twelve".