11736403123 has 2 divisors, whose sum is σ = 11736403124. Its totient is φ = 11736403122.

The previous prime is 11736403117. The next prime is 11736403127. The reversal of 11736403123 is 32130463711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11736403123 - 2⁹ = 11736402611 is a prime.

It is not a weakly prime, because it can be changed into another prime (11736403127) 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 as a sum of consecutive naturals, namely, 5868201561 + 5868201562.

It is an arithmetic number, because the mean of its divisors is an integer number (5868201562).

Almost surely, 2^11736403123 is an apocalyptic number.

11736403123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11736403123 is an equidigital number, since it uses as much as digits as its factorization.

11736403123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 11736403123 its reverse (32130463711), we get a palindrome (43866866834).

The spelling of 11736403123 in words is "eleven billion, seven hundred thirty-six million, four hundred three thousand, one hundred twenty-three".