230221331311 has 4 divisors (see below), whose sum is σ = 230433127552. Its totient is φ = 230009535072.

The previous prime is 230221331303. The next prime is 230221331381. The reversal of 230221331311 is 113133122032.

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 230221331311 - 2³ = 230221331303 is a prime.

It is a super-2 number, since 2×230221331311² (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 (230221331381) 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, 105896490 + ... + 105898663.

It is an arithmetic number, because the mean of its divisors is an integer number (57608281888).

Almost surely, 2^230221331311 is an apocalyptic number.

230221331311 is a deficient number, since it is larger than the sum of its proper divisors (211796241).

230221331311 is a wasteful number, since it uses less digits than its factorization.

230221331311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211796240.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 230221331311 its reverse (113133122032), we get a palindrome (343354453343).

The spelling of 230221331311 in words is "two hundred thirty billion, two hundred twenty-one million, three hundred thirty-one thousand, three hundred eleven".