321000101111 has 4 divisors (see below), whose sum is σ = 321001865424. Its totient is φ = 320998336800.

The previous prime is 321000101099. The next prime is 321000101131. The reversal of 321000101111 is 111101000123.

It is a happy number.

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 321000101111 - 2¹⁰ = 321000100087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321000101092 and 321000101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321000101131) 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, 573170 + ... + 985151.

It is an arithmetic number, because the mean of its divisors is an integer number (80250466356).

Almost surely, 2^321000101111 is an apocalyptic number.

321000101111 is a deficient number, since it is larger than the sum of its proper divisors (1764313).

321000101111 is a wasteful number, since it uses less digits than its factorization.

321000101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764312.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 321000101111 its reverse (111101000123), we get a palindrome (432101101234).

The spelling of 321000101111 in words is "three hundred twenty-one billion, one hundred one thousand, one hundred eleven".