203131421232 has 40 divisors (see below), whose sum is σ = 526008624960. Its totient is φ = 67548866880.

The previous prime is 203131421201. The next prime is 203131421279. The reversal of 203131421232 is 232124131302.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 5029894 + ... + 5070117.

It is an arithmetic number, because the mean of its divisors is an integer number (13150215624).

Almost surely, 2^203131421232 is an apocalyptic number.

It is an amenable number.

203131421232 is an abundant number, since it is smaller than the sum of its proper divisors (322877203728).

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

203131421232 is a wasteful number, since it uses less digits than its factorization.

203131421232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100441 (or 10100435 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 203131421232 its reverse (232124131302), we get a palindrome (435255552534).

The spelling of 203131421232 in words is "two hundred three billion, one hundred thirty-one million, four hundred twenty-one thousand, two hundred thirty-two".