200431131534 has 20 divisors (see below), whose sum is σ = 449114202504. Its totient is φ = 66810377124.

The previous prime is 200431131497. The next prime is 200431131553. The reversal of 200431131534 is 435131134002.

It is a happy number.

200431131534 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 311 + 315 + 34 = 666.

200431131534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 200431131498 and 200431131507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 618614442 + ... + 618614765.

Almost surely, 2^200431131534 is an apocalyptic number.

200431131534 is an abundant number, since it is smaller than the sum of its proper divisors (248683070970).

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

200431131534 is a wasteful number, since it uses less digits than its factorization.

200431131534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237229221 (or 1237229212 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 200431131534 its reverse (435131134002), we get a palindrome (635562265536).

The spelling of 200431131534 in words is "two hundred billion, four hundred thirty-one million, one hundred thirty-one thousand, five hundred thirty-four".