11615051013 has 4 divisors (see below), whose sum is σ = 15486734688. Its totient is φ = 7743367340.

The previous prime is 11615051011. The next prime is 11615051017. The reversal of 11615051013 is 31015051611.

It is a happy number.

11615051013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31015051611 = 3 ⋅10338350537.

It is a cyclic number.

It is not a de Polignac number, because 11615051013 - 2¹ = 11615051011 is a prime.

It is a super-3 number, since 3×11615051013³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11615051011) 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 3 ways as a sum of consecutive naturals, for example, 1935841833 + ... + 1935841838.

It is an arithmetic number, because the mean of its divisors is an integer number (3871683672).

Almost surely, 2^11615051013 is an apocalyptic number.

It is an amenable number.

11615051013 is a deficient number, since it is larger than the sum of its proper divisors (3871683675).

11615051013 is an equidigital number, since it uses as much as digits as its factorization.

11615051013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871683674.

The product of its (nonzero) digits is 450, while the sum is 24.

The spelling of 11615051013 in words is "eleven billion, six hundred fifteen million, fifty-one thousand, thirteen".