11513134821 has 8 divisors (see below), whose sum is σ = 15880186080. Its totient is φ = 7410753392.

The previous prime is 11513134793. The next prime is 11513134849. The reversal of 11513134821 is 12843131511.

It is an interprime number because it is at equal distance from previous prime (11513134793) and next prime (11513134849).

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 11513134821 - 2²³ = 11504746213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11513134891) 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, 66167355 + ... + 66167528.

It is an arithmetic number, because the mean of its divisors is an integer number (1985023260).

Almost surely, 2^11513134821 is an apocalyptic number.

It is an amenable number.

11513134821 is a deficient number, since it is larger than the sum of its proper divisors (4367051259).

11513134821 is a wasteful number, since it uses less digits than its factorization.

11513134821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132334915.

The product of its digits is 2880, while the sum is 30.

The spelling of 11513134821 in words is "eleven billion, five hundred thirteen million, one hundred thirty-four thousand, eight hundred twenty-one".