223230021311 has 16 divisors (see below), whose sum is σ = 244279416480. Its totient is φ = 202307051520.

The previous prime is 223230021283. The next prime is 223230021373. The reversal of 223230021311 is 113120032322.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223230021311 is a prime.

It is a super-3 number, since 3×223230021311³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223230021211) 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, 11022851 + ... + 11043083.

It is an arithmetic number, because the mean of its divisors is an integer number (15267463530).

Almost surely, 2^223230021311 is an apocalyptic number.

223230021311 is a deficient number, since it is larger than the sum of its proper divisors (21049395169).

223230021311 is a wasteful number, since it uses less digits than its factorization.

223230021311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23306.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 223230021311 its reverse (113120032322), we get a palindrome (336350053633).

The spelling of 223230021311 in words is "two hundred twenty-three billion, two hundred thirty million, twenty-one thousand, three hundred eleven".