11969279243 has 8 divisors (see below), whose sum is σ = 12457981200. Its totient is φ = 11485641888.

The previous prime is 11969279237. The next prime is 11969279249. The reversal of 11969279243 is 34297296911.

11969279243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11969279237) and next prime (11969279249).

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 11969279243 - 2⁸ = 11969278987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11969279249) 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, 1261328 + ... + 1270781.

It is an arithmetic number, because the mean of its divisors is an integer number (1557247650).

Almost surely, 2^11969279243 is an apocalyptic number.

11969279243 is a deficient number, since it is larger than the sum of its proper divisors (488701957).

11969279243 is a wasteful number, since it uses less digits than its factorization.

11969279243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532301.

The product of its digits is 1469664, while the sum is 53.

The spelling of 11969279243 in words is "eleven billion, nine hundred sixty-nine million, two hundred seventy-nine thousand, two hundred forty-three".