203031331004 has 12 divisors (see below), whose sum is σ = 356199806424. Its totient is φ = 101259957744.

The previous prime is 203031330967. The next prime is 203031331033. The reversal of 203031331004 is 400133130302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63925154 + ... + 63928329.

It is an arithmetic number, because the mean of its divisors is an integer number (29683317202).

Almost surely, 2^203031331004 is an apocalyptic number.

It is an amenable number.

203031331004 is a deficient number, since it is larger than the sum of its proper divisors (153168475420).

203031331004 is a wasteful number, since it uses less digits than its factorization.

203031331004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127853884 (or 127853882 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203031331004 its reverse (400133130302), we get a palindrome (603164461306).

The spelling of 203031331004 in words is "two hundred three billion, thirty-one million, three hundred thirty-one thousand, four".