423107230445 has 4 divisors (see below), whose sum is σ = 507728676540. Its totient is φ = 338485784352.

The previous prime is 423107230411. The next prime is 423107230451. The reversal of 423107230445 is 544032701324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 335062691716 + 88044538729 = 578846^2 + 296723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423107230445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42310723040 + ... + 42310723049.

It is an arithmetic number, because the mean of its divisors is an integer number (126932169135).

Almost surely, 2^423107230445 is an apocalyptic number.

It is an amenable number.

423107230445 is a deficient number, since it is larger than the sum of its proper divisors (84621446095).

423107230445 is an equidigital number, since it uses as much as digits as its factorization.

423107230445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84621446094.

The product of its (nonzero) digits is 80640, while the sum is 35.

Adding to 423107230445 its reverse (544032701324), we get a palindrome (967139931769).

The spelling of 423107230445 in words is "four hundred twenty-three billion, one hundred seven million, two hundred thirty thousand, four hundred forty-five".