423121004330 has 16 divisors (see below), whose sum is σ = 765564017544. Its totient is φ = 168371466240.

The previous prime is 423121004323. The next prime is 423121004473. The reversal of 423121004330 is 33400121324.

It can be written as a sum of positive squares in 4 ways, for example, as 307471359001 + 115649645329 = 554501^2 + 340073^2 .

It is a junction number, because it is equal to n+sod(n) for n = 423121004296 and 423121004305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109614911 + ... + 109618770.

Almost surely, 2^423121004330 is an apocalyptic number.

423121004330 is a deficient number, since it is larger than the sum of its proper divisors (342443013214).

423121004330 is a wasteful number, since it uses less digits than its factorization.

423121004330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219233881.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 423121004330 its reverse (33400121324), we get a palindrome (456521125654).

The spelling of 423121004330 in words is "four hundred twenty-three billion, one hundred twenty-one million, four thousand, three hundred thirty".