203120988 has 48 divisors (see below), whose sum is σ = 560340480. Its totient is φ = 56032704.

The previous prime is 203120977. The next prime is 203120993. The reversal of 203120988 is 889021302.

It is a super-2 number, since 2×203120988² = 82516271532192288, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 39256 + ... + 44127.

It is an arithmetic number, because the mean of its divisors is an integer number (11673760).

Almost surely, 2^203120988 is an apocalyptic number.

203120988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

203120988 is an abundant number, since it is smaller than the sum of its proper divisors (357219492).

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

203120988 is a wasteful number, since it uses less digits than its factorization.

203120988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83426 (or 83424 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 203120988 is about 14252.0520627733. The cubic root of 203120988 is about 587.8298017284.

The spelling of 203120988 in words is "two hundred three million, one hundred twenty thousand, nine hundred eighty-eight".