423342032112121 has 2 divisors, whose sum is σ = 423342032112122. Its totient is φ = 423342032112120.

The previous prime is 423342032112119. The next prime is 423342032112133. The reversal of 423342032112121 is 121211230243324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 414487455871225 + 8854576240896 = 20358965^2 + 2975664^2 .

It is a cyclic number.

It is not a de Polignac number, because 423342032112121 - 2¹ = 423342032112119 is a prime.

It is a super-3 number, since 3×423342032112121³ (a number of 45 digits) contains 333 as substring.

Together with 423342032112119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (423342032112101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211671016056060 + 211671016056061.

It is an arithmetic number, because the mean of its divisors is an integer number (211671016056061).

Almost surely, 2^{423342032112121} is an apocalyptic number.

It is an amenable number.

423342032112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

423342032112121 is an equidigital number, since it uses as much as digits as its factorization.

423342032112121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 423342032112121 its reverse (121211230243324), we get a palindrome (544553262355445).

The spelling of 423342032112121 in words is "four hundred twenty-three trillion, three hundred forty-two billion, thirty-two million, one hundred twelve thousand, one hundred twenty-one".