13531202115 has 8 divisors (see below), whose sum is σ = 21649923408. Its totient is φ = 7216641120.

The previous prime is 13531202057. The next prime is 13531202123. The reversal of 13531202115 is 51120213531.

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

It is not a de Polignac number, because 13531202115 - 2⁹ = 13531201603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451040056 + ... + 451040085.

It is an arithmetic number, because the mean of its divisors is an integer number (2706240426).

Almost surely, 2^13531202115 is an apocalyptic number.

13531202115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13531202115 is a deficient number, since it is larger than the sum of its proper divisors (8118721293).

13531202115 is an equidigital number, since it uses as much as digits as its factorization.

13531202115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902080149.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 13531202115 its reverse (51120213531), we get a palindrome (64651415646).

The spelling of 13531202115 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, one hundred fifteen".