223213210311 has 128 divisors (see below), whose sum is σ = 379814400000. Its totient is φ = 115850262528.

The previous prime is 223213210307. The next prime is 223213210369. The reversal of 223213210311 is 113012312322.

It is not a de Polignac number, because 223213210311 - 2² = 223213210307 is a prime.

It is a super-3 number, since 3×223213210311³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223213212311) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 372642790 + ... + 372643388.

It is an arithmetic number, because the mean of its divisors is an integer number (2967300000).

Almost surely, 2^223213210311 is an apocalyptic number.

223213210311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

223213210311 is a deficient number, since it is larger than the sum of its proper divisors (156601189689).

223213210311 is a wasteful number, since it uses less digits than its factorization.

223213210311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1024 counting only the distinct ones).

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

Adding to 223213210311 its reverse (113012312322), we get a palindrome (336225522633).

The spelling of 223213210311 in words is "two hundred twenty-three billion, two hundred thirteen million, two hundred ten thousand, three hundred eleven".