434821123 has 6 divisors (see below), whose sum is σ = 477944012. Its totient is φ = 395291820.

The previous prime is 434821109. The next prime is 434821139. The reversal of 434821123 is 321128434.

It is a de Polignac number, because none of the positive numbers 2^k-434821123 is a prime.

It is a super-2 number, since 2×434821123² = 378138818013962258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 434821091 and 434821100.

It is not an unprimeable number, because it can be changed into a prime (434821103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1796661 + ... + 1796902.

Almost surely, 2^434821123 is an apocalyptic number.

434821123 is a deficient number, since it is larger than the sum of its proper divisors (43122889).

434821123 is a wasteful number, since it uses less digits than its factorization.

434821123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593585 (or 3593574 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 434821123 is about 20852.3649258304. The cubic root of 434821123 is about 757.5946128196.

Adding to 434821123 its reverse (321128434), we get a palindrome (755949557).

The spelling of 434821123 in words is "four hundred thirty-four million, eight hundred twenty-one thousand, one hundred twenty-three".