203123131330 has 32 divisors (see below), whose sum is σ = 442432907136. Its totient is φ = 65545615104.

The previous prime is 203123131319. The next prime is 203123131349. The reversal of 203123131330 is 33131321302.

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 15 ways as a sum of consecutive naturals, for example, 85344664 + ... + 85347043.

It is an arithmetic number, because the mean of its divisors is an integer number (13826028348).

Almost surely, 2^203123131330 is an apocalyptic number.

203123131330 is an abundant number, since it is smaller than the sum of its proper divisors (239309775806).

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

203123131330 is a wasteful number, since it uses less digits than its factorization.

203123131330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170691738.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 203123131330 its reverse (33131321302), we get a palindrome (236254452632).

The spelling of 203123131330 in words is "two hundred three billion, one hundred twenty-three million, one hundred thirty-one thousand, three hundred thirty".