13531411523 has 8 divisors (see below), whose sum is σ = 15466203648. Its totient is φ = 11597052744.

The previous prime is 13531411519. The next prime is 13531411529. The reversal of 13531411523 is 32511413531.

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 13531411523 - 2² = 13531411519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531411529) 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, 38411 + ... + 168932.

It is an arithmetic number, because the mean of its divisors is an integer number (1933275456).

Almost surely, 2^13531411523 is an apocalyptic number.

13531411523 is a deficient number, since it is larger than the sum of its proper divisors (1934792125).

13531411523 is an equidigital number, since it uses as much as digits as its factorization.

13531411523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216673.

The product of its digits is 5400, while the sum is 29.

The spelling of 13531411523 in words is "thirteen billion, five hundred thirty-one million, four hundred eleven thousand, five hundred twenty-three".