13203412431 has 24 divisors (see below), whose sum is σ = 19357054080. Its totient is φ = 7999339920.

The previous prime is 13203412393. The next prime is 13203412441. The reversal of 13203412431 is 13421430231.

It is a happy number.

It is not a de Polignac number, because 13203412431 - 2¹³ = 13203404239 is a prime.

It is a super-2 number, since 2×13203412431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203412441) 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 23 ways as a sum of consecutive naturals, for example, 1723696 + ... + 1731338.

It is an arithmetic number, because the mean of its divisors is an integer number (806543920).

Almost surely, 2^13203412431 is an apocalyptic number.

13203412431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13203412431 is a deficient number, since it is larger than the sum of its proper divisors (6153641649).

13203412431 is a wasteful number, since it uses less digits than its factorization.

13203412431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12427 (or 12416 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13203412431 its reverse (13421430231), we get a palindrome (26624842662).

The spelling of 13203412431 in words is "thirteen billion, two hundred three million, four hundred twelve thousand, four hundred thirty-one".