11501500423 has 8 divisors (see below), whose sum is σ = 13168606592. Its totient is φ = 9840402936.

The previous prime is 11501500421. The next prime is 11501500457. The reversal of 11501500423 is 32400510511.

It is a happy number.

11501500423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11501500423 - 2¹ = 11501500421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11501500394 and 11501500403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11501500421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498065 + ... + 1505722.

It is an arithmetic number, because the mean of its divisors is an integer number (1646075824).

Almost surely, 2^11501500423 is an apocalyptic number.

11501500423 is a deficient number, since it is larger than the sum of its proper divisors (1667106169).

11501500423 is an equidigital number, since it uses as much as digits as its factorization.

11501500423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004341.

The product of its (nonzero) digits is 600, while the sum is 22.

The spelling of 11501500423 in words is "eleven billion, five hundred one million, five hundred thousand, four hundred twenty-three".