11523431705 has 16 divisors (see below), whose sum is σ = 14167488384. Its totient is φ = 8995176960.

The previous prime is 11523431671. The next prime is 11523431719. The reversal of 11523431705 is 50713432511.

It is not a de Polignac number, because 11523431705 - 2¹² = 11523427609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 132887 + ... + 201756.

It is an arithmetic number, because the mean of its divisors is an integer number (885468024).

Almost surely, 2^11523431705 is an apocalyptic number.

It is an amenable number.

11523431705 is a deficient number, since it is larger than the sum of its proper divisors (2644056679).

11523431705 is an equidigital number, since it uses as much as digits as its factorization.

11523431705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334816.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 11523431705 in words is "eleven billion, five hundred twenty-three million, four hundred thirty-one thousand, seven hundred five".