203431013431 has 8 divisors (see below), whose sum is σ = 205472269184. Its totient is φ = 201399838560.

The previous prime is 203431013419. The next prime is 203431013437. The reversal of 203431013431 is 134310134302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203431013431 - 2²¹ = 203428916279 is a prime.

It is a super-2 number, since 2×203431013431² (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 = 203431013396 and 203431013405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203431013437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479656 + ... + 2560381.

It is an arithmetic number, because the mean of its divisors is an integer number (25684033648).

Almost surely, 2^203431013431 is an apocalyptic number.

203431013431 is a deficient number, since it is larger than the sum of its proper divisors (2041255753).

203431013431 is a wasteful number, since it uses less digits than its factorization.

203431013431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040441.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203431013431 its reverse (134310134302), we get a palindrome (337741147733).

The spelling of 203431013431 in words is "two hundred three billion, four hundred thirty-one million, thirteen thousand, four hundred thirty-one".