11403202431 has 16 divisors (see below), whose sum is σ = 16009395840. Its totient is φ = 7199817120.

The previous prime is 11403202429. The next prime is 11403202441. The reversal of 11403202431 is 13420230411.

It is not a de Polignac number, because 11403202431 - 2¹ = 11403202429 is a prime.

It is a super-2 number, since 2×11403202431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11403202398 and 11403202407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403202441) 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 15 ways as a sum of consecutive naturals, for example, 168376 + ... + 226178.

It is an arithmetic number, because the mean of its divisors is an integer number (1000587240).

Almost surely, 2^11403202431 is an apocalyptic number.

11403202431 is a deficient number, since it is larger than the sum of its proper divisors (4606193409).

11403202431 is a wasteful number, since it uses less digits than its factorization.

11403202431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61286.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11403202431 its reverse (13420230411), we get a palindrome (24823432842).

The spelling of 11403202431 in words is "eleven billion, four hundred three million, two hundred two thousand, four hundred thirty-one".