203012201000 has 128 divisors (see below), whose sum is σ = 545247106560. Its totient is φ = 69304896000.

The previous prime is 203012200997. The next prime is 203012201047. The reversal of 203012201000 is 102210302.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1568765 + ... + 1693235.

It is an arithmetic number, because the mean of its divisors is an integer number (4259743020).

Almost surely, 2^203012201000 is an apocalyptic number.

203012201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203012201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272623553280).

203012201000 is an abundant number, since it is smaller than the sum of its proper divisors (342234905560).

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

203012201000 is a wasteful number, since it uses less digits than its factorization.

203012201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124732 (or 124718 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 203012201000 its reverse (102210302), we get a palindrome (203114411302).

The spelling of 203012201000 in words is "two hundred three billion, twelve million, two hundred one thousand".