423223422434129 has 2 divisors, whose sum is σ = 423223422434130. Its totient is φ = 423223422434128.

The previous prime is 423223422434011. The next prime is 423223422434201. The reversal of 423223422434129 is 921434224322324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397863939361729 + 25359483072400 = 19946527^2 + 5035820^2 .

It is a cyclic number.

It is not a de Polignac number, because 423223422434129 - 2⁸ = 423223422433873 is a prime.

It is a super-2 number, since 2×423223422434129² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423223422484129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211611711217064 + 211611711217065.

It is an arithmetic number, because the mean of its divisors is an integer number (211611711217065).

Almost surely, 2^{423223422434129} is an apocalyptic number.

It is an amenable number.

423223422434129 is a deficient number, since it is larger than the sum of its proper divisors (1).

423223422434129 is an equidigital number, since it uses as much as digits as its factorization.

423223422434129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 47.

The spelling of 423223422434129 in words is "four hundred twenty-three trillion, two hundred twenty-three billion, four hundred twenty-two million, four hundred thirty-four thousand, one hundred twenty-nine".