423340101 has 10 divisors (see below), whose sum is σ = 632397062. Its totient is φ = 282226680.

The previous prime is 423340091. The next prime is 423340133. The reversal of 423340101 is 101043324.

It can be written as a sum of positive squares in only one way, i.e., 423289476 + 50625 = 20574^2 + 225^2 .

It is not a de Polignac number, because 423340101 - 2⁶ = 423340037 is a prime.

It is a super-2 number, since 2×423340101² = 358433682229380402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423340201) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2613130 + ... + 2613291.

Almost surely, 2^423340101 is an apocalyptic number.

It is an amenable number.

423340101 is a deficient number, since it is larger than the sum of its proper divisors (209056961).

423340101 is an equidigital number, since it uses as much as digits as its factorization.

423340101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226433 (or 5226424 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 423340101 is about 20575.2302781767. The cubic root of 423340101 is about 750.8672048878.

Adding to 423340101 its reverse (101043324), we get a palindrome (524383425).

The spelling of 423340101 in words is "four hundred twenty-three million, three hundred forty thousand, one hundred one".