12415531523 has 8 divisors (see below), whose sum is σ = 12541022208. Its totient is φ = 12290136264.

The previous prime is 12415531517. The next prime is 12415531543. The reversal of 12415531523 is 32513551421.

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

It is a cyclic number.

It is not a de Polignac number, because 12415531523 - 2⁴ = 12415531507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12415531523.

It is not an unprimeable number, because it can be changed into a prime (12415531543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253886 + ... + 298812.

It is an arithmetic number, because the mean of its divisors is an integer number (1567627776).

Almost surely, 2^12415531523 is an apocalyptic number.

12415531523 is a deficient number, since it is larger than the sum of its proper divisors (125490685).

12415531523 is a wasteful number, since it uses less digits than its factorization.

12415531523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47713.

The product of its digits is 18000, while the sum is 32.

The spelling of 12415531523 in words is "twelve billion, four hundred fifteen million, five hundred thirty-one thousand, five hundred twenty-three".