11287078243 has 16 divisors (see below), whose sum is σ = 13850694144. Its totient is φ = 8977288320.

The previous prime is 11287078223. The next prime is 11287078267. The reversal of 11287078243 is 34287078211.

It is not a de Polignac number, because 11287078243 - 2⁹ = 11287077731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11287078243.

It is not an unprimeable number, because it can be changed into a prime (11287078223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659505 + ... + 676402.

It is an arithmetic number, because the mean of its divisors is an integer number (865668384).

Almost surely, 2^11287078243 is an apocalyptic number.

11287078243 is a deficient number, since it is larger than the sum of its proper divisors (2563615901).

11287078243 is a wasteful number, since it uses less digits than its factorization.

11287078243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336002.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 11287078243 in words is "eleven billion, two hundred eighty-seven million, seventy-eight thousand, two hundred forty-three".