203203013240010 has 128 divisors (see below), whose sum is σ = 562484653885440. Its totient is φ = 46019106802944.

The previous prime is 203203013239969. The next prime is 203203013240047. The reversal of 203203013240010 is 10042310302302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1139535277 + ... + 1139713583.

It is an arithmetic number, because the mean of its divisors is an integer number (4394411358480).

Almost surely, 2^{203203013240010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203203013240010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281242326942720).

203203013240010 is an abundant number, since it is smaller than the sum of its proper divisors (359281640645430).

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

203203013240010 is a wasteful number, since it uses less digits than its factorization.

203203013240010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228220.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203203013240010 its reverse (10042310302302), we get a palindrome (213245323542312).

The spelling of 203203013240010 in words is "two hundred three trillion, two hundred three billion, thirteen million, two hundred forty thousand, ten".