231550431203404 has 24 divisors (see below), whose sum is σ = 410462950480128. Its totient is φ = 114282530993040.

The previous prime is 231550431203339. The next prime is 231550431203423. The reversal of 231550431203404 is 404302134055132.

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, 903433942 + ... + 903690205.

It is an arithmetic number, because the mean of its divisors is an integer number (17102622936672).

Almost surely, 2^{231550431203404} is an apocalyptic number.

It is an amenable number.

231550431203404 is a deficient number, since it is larger than the sum of its proper divisors (178912519276724).

231550431203404 is a wasteful number, since it uses less digits than its factorization.

231550431203404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807124565 (or 1807124563 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 231550431203404 its reverse (404302134055132), we get a palindrome (635852565258536).

The spelling of 231550431203404 in words is "two hundred thirty-one trillion, five hundred fifty billion, four hundred thirty-one million, two hundred three thousand, four hundred four".