204142023432531 has 48 divisors (see below), whose sum is σ = 303438125881696. Its totient is φ = 132155525956608.

The previous prime is 204142023432521. The next prime is 204142023432559. The reversal of 204142023432531 is 135234320241402.

204142023432531 is a `hidden beast` number, since 2 + 0 + 4 + 14 + 202 + 3 + 432 + 5 + 3 + 1 = 666.

It is not a de Polignac number, because 204142023432531 - 2²¹ = 204142021335379 is a prime.

It is a super-2 number, since 2×204142023432531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204142023432521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5603199291 + ... + 5603235723.

Almost surely, 2^{204142023432531} is an apocalyptic number.

204142023432531 is a deficient number, since it is larger than the sum of its proper divisors (99296102449165).

204142023432531 is a wasteful number, since it uses less digits than its factorization.

204142023432531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69172 (or 69169 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 204142023432531 its reverse (135234320241402), we get a palindrome (339376343673933).

The spelling of 204142023432531 in words is "two hundred four trillion, one hundred forty-two billion, twenty-three million, four hundred thirty-two thousand, five hundred thirty-one".