11012660531 has 8 divisors (see below), whose sum is σ = 11147673600. Its totient is φ = 10877703112.

The previous prime is 11012660513. The next prime is 11012660573. The reversal of 11012660531 is 13506621011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11012660531 - 2⁶ = 11012660467 is a prime.

It is a super-2 number, since 2×11012660531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11012660531.

It is not an unprimeable number, because it can be changed into a prime (11012660431) 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, 499070 + ... + 520668.

It is an arithmetic number, because the mean of its divisors is an integer number (1393459200).

Almost surely, 2^11012660531 is an apocalyptic number.

11012660531 is a deficient number, since it is larger than the sum of its proper divisors (135013069).

11012660531 is an equidigital number, since it uses as much as digits as its factorization.

11012660531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27825.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 11012660531 in words is "eleven billion, twelve million, six hundred sixty thousand, five hundred thirty-one".