203000130000 has 300 divisors, whose sum is σ = 729119785108. Its totient is φ = 52669440000.

The previous prime is 203000129987. The next prime is 203000130013. The reversal of 203000130000 is 31000302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203000129987) and next prime (203000130013).

It can be written as a sum of positive squares in 10 ways, for example, as 176732796816 + 26267333184 = 420396^2 + 162072^2 .

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3299520 + ... + 3360480.

Almost surely, 2^203000130000 is an apocalyptic number.

203000130000 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 203000130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364559892554).

203000130000 is an abundant number, since it is smaller than the sum of its proper divisors (526119655108).

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

203000130000 is a wasteful number, since it uses less digits than its factorization.

203000130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61032 (or 61008 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 203000130000 its reverse (31000302), we get a palindrome (203031130302).

The spelling of 203000130000 in words is "two hundred three billion, one hundred thirty thousand".