11275027531 has 4 divisors (see below), whose sum is σ = 11443311592. Its totient is φ = 11106743472.

The previous prime is 11275027529. The next prime is 11275027583. The reversal of 11275027531 is 13572057211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11275027531 - 2¹ = 11275027529 is a prime.

It is a super-2 number, since 2×11275027531² (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 (11275027331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84141930 + ... + 84142063.

It is an arithmetic number, because the mean of its divisors is an integer number (2860827898).

Almost surely, 2^11275027531 is an apocalyptic number.

11275027531 is a deficient number, since it is larger than the sum of its proper divisors (168284061).

11275027531 is an equidigital number, since it uses as much as digits as its factorization.

11275027531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168284060.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 11275027531 in words is "eleven billion, two hundred seventy-five million, twenty-seven thousand, five hundred thirty-one".