223424431277 has 2 divisors, whose sum is σ = 223424431278. Its totient is φ = 223424431276.

The previous prime is 223424431207. The next prime is 223424431303. The reversal of 223424431277 is 772134424322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209732857156 + 13691574121 = 457966^2 + 117011^2 .

It is a cyclic number.

It is not a de Polignac number, because 223424431277 - 2³² = 219129463981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223424431207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111712215638 + 111712215639.

It is an arithmetic number, because the mean of its divisors is an integer number (111712215639).

Almost surely, 2^223424431277 is an apocalyptic number.

It is an amenable number.

223424431277 is a deficient number, since it is larger than the sum of its proper divisors (1).

223424431277 is an equidigital number, since it uses as much as digits as its factorization.

223424431277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 41.

Adding to 223424431277 its reverse (772134424322), we get a palindrome (995558855599).

The spelling of 223424431277 in words is "two hundred twenty-three billion, four hundred twenty-four million, four hundred thirty-one thousand, two hundred seventy-seven".