11013640239 has 16 divisors (see below), whose sum is σ = 16936663040. Its totient is φ = 6235768800.

The previous prime is 11013640223. The next prime is 11013640283. The reversal of 11013640239 is 93204631011.

It is not a de Polignac number, because 11013640239 - 2⁴ = 11013640223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013640139) 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, 2403487 + ... + 2408064.

It is an arithmetic number, because the mean of its divisors is an integer number (1058541440).

Almost surely, 2^11013640239 is an apocalyptic number.

11013640239 is a deficient number, since it is larger than the sum of its proper divisors (5923022801).

11013640239 is a wasteful number, since it uses less digits than its factorization.

11013640239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811670.

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 11013640239 in words is "eleven billion, thirteen million, six hundred forty thousand, two hundred thirty-nine".