423334134121 has 2 divisors, whose sum is σ = 423334134122. Its totient is φ = 423334134120.

The previous prime is 423334134061. The next prime is 423334134199. The reversal of 423334134121 is 121431433324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352224445225 + 71109688896 = 593485^2 + 266664^2 .

It is a cyclic number.

It is not a de Polignac number, because 423334134121 - 2⁷ = 423334133993 is a prime.

It is a super-2 number, since 2×423334134121² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423134134121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211667067060 + 211667067061.

It is an arithmetic number, because the mean of its divisors is an integer number (211667067061).

Almost surely, 2^423334134121 is an apocalyptic number.

It is an amenable number.

423334134121 is a deficient number, since it is larger than the sum of its proper divisors (1).

423334134121 is an equidigital number, since it uses as much as digits as its factorization.

423334134121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 31.

Adding to 423334134121 its reverse (121431433324), we get a palindrome (544765567445).

The spelling of 423334134121 in words is "four hundred twenty-three billion, three hundred thirty-four million, one hundred thirty-four thousand, one hundred twenty-one".