223235532281 has 2 divisors, whose sum is σ = 223235532282. Its totient is φ = 223235532280.

The previous prime is 223235532257. The next prime is 223235532337. The reversal of 223235532281 is 182235532322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189973067881 + 33262464400 = 435859^2 + 182380^2 .

It is a cyclic number.

It is not a de Polignac number, because 223235532281 - 2¹⁰ = 223235531257 is a prime.

It is a super-3 number, since 3×223235532281³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (223235532211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111617766140 + 111617766141.

It is an arithmetic number, because the mean of its divisors is an integer number (111617766141).

Almost surely, 2^223235532281 is an apocalyptic number.

It is an amenable number.

223235532281 is a deficient number, since it is larger than the sum of its proper divisors (1).

223235532281 is an equidigital number, since it uses as much as digits as its factorization.

223235532281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 38.

The spelling of 223235532281 in words is "two hundred twenty-three billion, two hundred thirty-five million, five hundred thirty-two thousand, two hundred eighty-one".