321123434 has 4 divisors (see below), whose sum is σ = 481685154. Its totient is φ = 160561716.

The previous prime is 321123433. The next prime is 321123443. The reversal of 321123434 is 434321123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434321123 = 599 ⋅725077.

It can be written as a sum of positive squares in only one way, i.e., 300918409 + 20205025 = 17347^2 + 4495^2 .

It is a super-3 number, since 3×321123434³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (321123433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80280857 + ... + 80280860.

Almost surely, 2^321123434 is an apocalyptic number.

321123434 is a deficient number, since it is larger than the sum of its proper divisors (160561720).

321123434 is a wasteful number, since it uses less digits than its factorization.

321123434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160561719.

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

The square root of 321123434 is about 17919.9172431125. The cubic root of 321123434 is about 684.7898792545.

Adding to 321123434 its reverse (434321123), we get a palindrome (755444557).

The spelling of 321123434 in words is "three hundred twenty-one million, one hundred twenty-three thousand, four hundred thirty-four".