43123222253 has 2 divisors, whose sum is σ = 43123222254. Its totient is φ = 43123222252.

The previous prime is 43123222171. The next prime is 43123222277. The reversal of 43123222253 is 35222232134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32754484324 + 10368737929 = 180982^2 + 101827^2 .

It is a cyclic number.

It is not a de Polignac number, because 43123222253 - 2¹² = 43123218157 is a prime.

It is a super-2 number, since 2×43123222253² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43123227253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21561611126 + 21561611127.

It is an arithmetic number, because the mean of its divisors is an integer number (21561611127).

Almost surely, 2^43123222253 is an apocalyptic number.

It is an amenable number.

43123222253 is a deficient number, since it is larger than the sum of its proper divisors (1).

43123222253 is an equidigital number, since it uses as much as digits as its factorization.

43123222253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 29.

Adding to 43123222253 its reverse (35222232134), we get a palindrome (78345454387).

The spelling of 43123222253 in words is "forty-three billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred fifty-three".