11421297517 has 8 divisors (see below), whose sum is σ = 13100036096. Its totient is φ = 9754340112.

The previous prime is 11421297457. The next prime is 11421297533. The reversal of 11421297517 is 71579212411.

11421297517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11421297517 - 2²³ = 11412908909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11421297517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421291517) 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 7 ways as a sum of consecutive naturals, for example, 2943213 + ... + 2947090.

It is an arithmetic number, because the mean of its divisors is an integer number (1637504512).

Almost surely, 2^11421297517 is an apocalyptic number.

It is an amenable number.

11421297517 is a deficient number, since it is larger than the sum of its proper divisors (1678738579).

11421297517 is an equidigital number, since it uses as much as digits as its factorization.

11421297517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890587.

The product of its digits is 35280, while the sum is 40.

The spelling of 11421297517 in words is "eleven billion, four hundred twenty-one million, two hundred ninety-seven thousand, five hundred seventeen".