321220034 has 4 divisors (see below), whose sum is σ = 481830054. Its totient is φ = 160610016.

The previous prime is 321220033. The next prime is 321220073. The reversal of 321220034 is 430022123.

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

It can be written as a sum of positive squares in only one way, i.e., 290804809 + 30415225 = 17053^2 + 5515^2 .

It is a super-2 number, since 2×321220034² = 206364620485922312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321219994 and 321220021.

It is not an unprimeable number, because it can be changed into a prime (321220033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80305007 + ... + 80305010.

Almost surely, 2^321220034 is an apocalyptic number.

321220034 is a deficient number, since it is larger than the sum of its proper divisors (160610020).

321220034 is a wasteful number, since it uses less digits than its factorization.

321220034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160610019.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 321220034 is about 17922.6123653891. The cubic root of 321220034 is about 684.8585382843.

Adding to 321220034 its reverse (430022123), we get a palindrome (751242157).

The spelling of 321220034 in words is "three hundred twenty-one million, two hundred twenty thousand, thirty-four".