203124131431 has 4 divisors (see below), whose sum is σ = 218749064632. Its totient is φ = 187499198232.

The previous prime is 203124131401. The next prime is 203124131443. The reversal of 203124131431 is 134131421302.

203124131431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203124131431 - 2¹³ = 203124123239 is a prime.

It is a super-2 number, since 2×203124131431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203124131396 and 203124131405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203124131401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7812466581 + ... + 7812466606.

It is an arithmetic number, because the mean of its divisors is an integer number (54687266158).

Almost surely, 2^203124131431 is an apocalyptic number.

203124131431 is a deficient number, since it is larger than the sum of its proper divisors (15624933201).

203124131431 is a wasteful number, since it uses less digits than its factorization.

203124131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15624933200.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 203124131431 its reverse (134131421302), we get a palindrome (337255552733).

The spelling of 203124131431 in words is "two hundred three billion, one hundred twenty-four million, one hundred thirty-one thousand, four hundred thirty-one".