11272549331 has 2 divisors, whose sum is σ = 11272549332. Its totient is φ = 11272549330.

The previous prime is 11272549319. The next prime is 11272549361. The reversal of 11272549331 is 13394527211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11272549331 is a prime.

It is a super-2 number, since 2×11272549331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11272549361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5636274665 + 5636274666.

It is an arithmetic number, because the mean of its divisors is an integer number (5636274666).

Almost surely, 2^11272549331 is an apocalyptic number.

11272549331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11272549331 is an equidigital number, since it uses as much as digits as its factorization.

11272549331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The spelling of 11272549331 in words is "eleven billion, two hundred seventy-two million, five hundred forty-nine thousand, three hundred thirty-one".