203131132444004 has 24 divisors (see below), whose sum is σ = 355639206574008. Its totient is φ = 101519936456960.

The previous prime is 203131132443991. The next prime is 203131132444021. The reversal of 203131132444004 is 400444231131302.

It can be written as a sum of positive squares in 4 ways, for example, as 19200521785600 + 183930610658404 = 4381840^2 + 13562102^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138671864 + ... + 140129040.

It is an arithmetic number, because the mean of its divisors is an integer number (14818300273917).

Almost surely, 2^{203131132444004} is an apocalyptic number.

It is an amenable number.

203131132444004 is a deficient number, since it is larger than the sum of its proper divisors (152508074130004).

203131132444004 is a wasteful number, since it uses less digits than its factorization.

203131132444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472815 (or 1472813 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 203131132444004 its reverse (400444231131302), we get a palindrome (603575363575306).

The spelling of 203131132444004 in words is "two hundred three trillion, one hundred thirty-one billion, one hundred thirty-two million, four hundred forty-four thousand, four".