227561231311 has 16 divisors (see below), whose sum is σ = 248745738240. Its totient is φ = 207244679040.

The previous prime is 227561231299. The next prime is 227561231341. The reversal of 227561231311 is 113132165722.

It is a cyclic number.

It is not a de Polignac number, because 227561231311 - 2¹¹ = 227561229263 is a prime.

It is a super-2 number, since 2×227561231311² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227561231341) 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, 7193050 + ... + 7224616.

It is an arithmetic number, because the mean of its divisors is an integer number (15546608640).

Almost surely, 2^227561231311 is an apocalyptic number.

227561231311 is a deficient number, since it is larger than the sum of its proper divisors (21184506929).

227561231311 is a wasteful number, since it uses less digits than its factorization.

227561231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45294.

The product of its digits is 15120, while the sum is 34.

The spelling of 227561231311 in words is "two hundred twenty-seven billion, five hundred sixty-one million, two hundred thirty-one thousand, three hundred eleven".