11581703011 has 8 divisors (see below), whose sum is σ = 11932801344. Its totient is φ = 11234966400.

The previous prime is 11581702987. The next prime is 11581703017. The reversal of 11581703011 is 11030718511.

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 11581703011 - 2⁹ = 11581702499 is a prime.

It is a super-2 number, since 2×11581703011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11581703017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085040 + ... + 1095661.

It is an arithmetic number, because the mean of its divisors is an integer number (1491600168).

Almost surely, 2^11581703011 is an apocalyptic number.

11581703011 is a deficient number, since it is larger than the sum of its proper divisors (351098333).

11581703011 is a wasteful number, since it uses less digits than its factorization.

11581703011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180861.

The product of its (nonzero) digits is 840, while the sum is 28.

The spelling of 11581703011 in words is "eleven billion, five hundred eighty-one million, seven hundred three thousand, eleven".