321103202011 has 4 divisors (see below), whose sum is σ = 323554371624. Its totient is φ = 318652032400.

The previous prime is 321103201997. The next prime is 321103202071. The reversal of 321103202011 is 110202301123.

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 321103202011 - 2⁷ = 321103201883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321103202071) 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, 1225584610 + ... + 1225584871.

It is an arithmetic number, because the mean of its divisors is an integer number (80888592906).

Almost surely, 2^321103202011 is an apocalyptic number.

321103202011 is a deficient number, since it is larger than the sum of its proper divisors (2451169613).

321103202011 is a wasteful number, since it uses less digits than its factorization.

321103202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451169612.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 321103202011 its reverse (110202301123), we get a palindrome (431305503134).

The spelling of 321103202011 in words is "three hundred twenty-one billion, one hundred three million, two hundred two thousand, eleven".