223403002157 has 2 divisors, whose sum is σ = 223403002158. Its totient is φ = 223403002156.

The previous prime is 223403002127. The next prime is 223403002159. The reversal of 223403002157 is 751200304322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163657466116 + 59745536041 = 404546^2 + 244429^2 .

It is a cyclic number.

It is not a de Polignac number, because 223403002157 - 2¹⁸ = 223402740013 is a prime.

Together with 223403002159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223403002159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111701501078 + 111701501079.

It is an arithmetic number, because the mean of its divisors is an integer number (111701501079).

Almost surely, 2^223403002157 is an apocalyptic number.

It is an amenable number.

223403002157 is a deficient number, since it is larger than the sum of its proper divisors (1).

223403002157 is an equidigital number, since it uses as much as digits as its factorization.

223403002157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 223403002157 its reverse (751200304322), we get a palindrome (974603306479).

The spelling of 223403002157 in words is "two hundred twenty-three billion, four hundred three million, two thousand, one hundred fifty-seven".