11403234431 has 2 divisors, whose sum is σ = 11403234432. Its totient is φ = 11403234430.

The previous prime is 11403234419. The next prime is 11403234473. The reversal of 11403234431 is 13443230411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11403234431 - 2¹⁰ = 11403233407 is a prime.

It is a super-3 number, since 3×11403234431³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 11403234431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11403234631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701617215 + 5701617216.

It is an arithmetic number, because the mean of its divisors is an integer number (5701617216).

Almost surely, 2^11403234431 is an apocalyptic number.

11403234431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403234431 is an equidigital number, since it uses as much as digits as its factorization.

11403234431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 11403234431 its reverse (13443230411), we get a palindrome (24846464842).

The spelling of 11403234431 in words is "eleven billion, four hundred three million, two hundred thirty-four thousand, four hundred thirty-one".