223231312229 has 2 divisors, whose sum is σ = 223231312230. Its totient is φ = 223231312228.

The previous prime is 223231312223. The next prime is 223231312231. The reversal of 223231312229 is 922213132322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174181022500 + 49050289729 = 417350^2 + 221473^2 .

It is a cyclic number.

It is not a de Polignac number, because 223231312229 - 2¹² = 223231308133 is a prime.

It is a super-3 number, since 3×223231312229³ (a number of 35 digits) contains 333 as substring.

Together with 223231312231, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 223231312195 and 223231312204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223231312223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111615656114 + 111615656115.

It is an arithmetic number, because the mean of its divisors is an integer number (111615656115).

Almost surely, 2^223231312229 is an apocalyptic number.

It is an amenable number.

223231312229 is a deficient number, since it is larger than the sum of its proper divisors (1).

223231312229 is an equidigital number, since it uses as much as digits as its factorization.

223231312229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The spelling of 223231312229 in words is "two hundred twenty-three billion, two hundred thirty-one million, three hundred twelve thousand, two hundred twenty-nine".