1423336121 has 2 divisors, whose sum is σ = 1423336122. Its totient is φ = 1423336120.

The previous prime is 1423336111. The next prime is 1423336223. The reversal of 1423336121 is 1216333241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1045616896 + 377719225 = 32336^2 + 19435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423336121 - 2¹⁰ = 1423335097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1423336111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711668060 + 711668061.

It is an arithmetic number, because the mean of its divisors is an integer number (711668061).

Almost surely, 2^1423336121 is an apocalyptic number.

It is an amenable number.

1423336121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423336121 is an equidigital number, since it uses as much as digits as its factorization.

1423336121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 1423336121 is about 37727.1271235964. The cubic root of 1423336121 is about 1124.8704037711.

Adding to 1423336121 its reverse (1216333241), we get a palindrome (2639669362).

The spelling of 1423336121 in words is "one billion, four hundred twenty-three million, three hundred thirty-six thousand, one hundred twenty-one".