11956346243 has 16 divisors (see below), whose sum is σ = 12673863936. Its totient is φ = 11255613600.

The previous prime is 11956346231. The next prime is 11956346249. The reversal of 11956346243 is 34264365911.

11956346243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11956346243 - 2⁶ = 11956346179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11956346194 and 11956346203.

It is not an unprimeable number, because it can be changed into a prime (11956346249) 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 15 ways as a sum of consecutive naturals, for example, 2112968 + ... + 2118618.

It is an arithmetic number, because the mean of its divisors is an integer number (792116496).

Almost surely, 2^11956346243 is an apocalyptic number.

11956346243 is a deficient number, since it is larger than the sum of its proper divisors (717517693).

11956346243 is a wasteful number, since it uses less digits than its factorization.

11956346243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114.

The product of its digits is 466560, while the sum is 44.

The spelling of 11956346243 in words is "eleven billion, nine hundred fifty-six million, three hundred forty-six thousand, two hundred forty-three".