321412103 has 4 divisors (see below), whose sum is σ = 321554568. Its totient is φ = 321269640.

The previous prime is 321412099. The next prime is 321412121. The reversal of 321412103 is 301214123.

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

It is a cyclic number.

It is not a de Polignac number, because 321412103 - 2² = 321412099 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321412153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67793 + ... + 72378.

It is an arithmetic number, because the mean of its divisors is an integer number (80388642).

Almost surely, 2^321412103 is an apocalyptic number.

321412103 is a deficient number, since it is larger than the sum of its proper divisors (142465).

321412103 is a wasteful number, since it uses less digits than its factorization.

321412103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142464.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 321412103 is about 17927.9698516034. The cubic root of 321412103 is about 684.9950115963.

Adding to 321412103 its reverse (301214123), we get a palindrome (622626226).

The spelling of 321412103 in words is "three hundred twenty-one million, four hundred twelve thousand, one hundred three".