223021311312 has 80 divisors (see below), whose sum is σ = 578926819328. Its totient is φ = 73981071360.

The previous prime is 223021311251. The next prime is 223021311313. The reversal of 223021311312 is 213113120322.

223021311312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×223021311312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223021311313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19231788 + ... + 19243380.

Almost surely, 2^223021311312 is an apocalyptic number.

It is an amenable number.

223021311312 is an abundant number, since it is smaller than the sum of its proper divisors (355905508016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223021311312 is a wasteful number, since it uses less digits than its factorization.

223021311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13508 (or 13502 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 223021311312 its reverse (213113120322), we get a palindrome (436134431634).

The spelling of 223021311312 in words is "two hundred twenty-three billion, twenty-one million, three hundred eleven thousand, three hundred twelve".