423451320133 has 2 divisors, whose sum is σ = 423451320134. Its totient is φ = 423451320132.

The previous prime is 423451320113. The next prime is 423451320151. The reversal of 423451320133 is 331023154324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374290674849 + 49160645284 = 611793^2 + 221722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423451320133 is a prime.

It is a super-2 number, since 2×423451320133² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423451320095 and 423451320104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423451320113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211725660066 + 211725660067.

It is an arithmetic number, because the mean of its divisors is an integer number (211725660067).

Almost surely, 2^423451320133 is an apocalyptic number.

It is an amenable number.

423451320133 is a deficient number, since it is larger than the sum of its proper divisors (1).

423451320133 is an equidigital number, since it uses as much as digits as its factorization.

423451320133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 423451320133 its reverse (331023154324), we get a palindrome (754474474457).

The spelling of 423451320133 in words is "four hundred twenty-three billion, four hundred fifty-one million, three hundred twenty thousand, one hundred thirty-three".