11303123324431 has 4 divisors (see below), whose sum is σ = 11316374349112. Its totient is φ = 11289872299752.

The previous prime is 11303123324411. The next prime is 11303123324501. The reversal of 11303123324431 is 13442332130311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11303123324431 is a prime.

It is a super-2 number, since 2×11303123324431² (a number of 27 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 = 11303123324393 and 11303123324402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11303123324411) 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 3 ways as a sum of consecutive naturals, for example, 6625511061 + ... + 6625512766.

It is an arithmetic number, because the mean of its divisors is an integer number (2829093587278).

Almost surely, 2^{11303123324431} is an apocalyptic number.

11303123324431 is a deficient number, since it is larger than the sum of its proper divisors (13251024681).

11303123324431 is an equidigital number, since it uses as much as digits as its factorization.

11303123324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13251024680.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 11303123324431 its reverse (13442332130311), we get a palindrome (24745455454742).

The spelling of 11303123324431 in words is "eleven trillion, three hundred three billion, one hundred twenty-three million, three hundred twenty-four thousand, four hundred thirty-one".