11531074027 has 16 divisors (see below), whose sum is σ = 13246560000. Its totient is φ = 9927217440.

The previous prime is 11531074021. The next prime is 11531074097. The reversal of 11531074027 is 72047013511.

It is a cyclic number.

It is not a de Polignac number, because 11531074027 - 2³ = 11531074019 is a prime.

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 11531074027.

It is not an unprimeable number, because it can be changed into a prime (11531074021) 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, 617593 + ... + 635989.

It is an arithmetic number, because the mean of its divisors is an integer number (827910000).

Almost surely, 2^11531074027 is an apocalyptic number.

11531074027 is a deficient number, since it is larger than the sum of its proper divisors (1715485973).

11531074027 is a wasteful number, since it uses less digits than its factorization.

11531074027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21426.

The product of its (nonzero) digits is 5880, while the sum is 31.

Adding to 11531074027 its reverse (72047013511), we get a palindrome (83578087538).

The spelling of 11531074027 in words is "eleven billion, five hundred thirty-one million, seventy-four thousand, twenty-seven".