11531156089 has 8 divisors (see below), whose sum is σ = 11554403328. Its totient is φ = 11507934240.

The previous prime is 11531156081. The next prime is 11531156093. The reversal of 11531156089 is 98065113511.

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 11531156089 - 2³ = 11531156081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11531156081) 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, 1081824 + ... + 1092430.

It is an arithmetic number, because the mean of its divisors is an integer number (1444300416).

Almost surely, 2^11531156089 is an apocalyptic number.

It is an amenable number.

11531156089 is a deficient number, since it is larger than the sum of its proper divisors (23247239).

11531156089 is a wasteful number, since it uses less digits than its factorization.

11531156089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695.

The product of its (nonzero) digits is 32400, while the sum is 40.

The spelling of 11531156089 in words is "eleven billion, five hundred thirty-one million, one hundred fifty-six thousand, eighty-nine".