321311203011 has 6 divisors (see below), whose sum is σ = 464116182140. Its totient is φ = 214207468668.

The previous prime is 321311203009. The next prime is 321311203067. The reversal of 321311203011 is 110302113123.

321311203011 is a `hidden beast` number, since 32 + 1 + 311 + 20 + 301 + 1 = 666.

It is not a de Polignac number, because 321311203011 - 2¹ = 321311203009 is a prime.

It is a super-2 number, since 2×321311203011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321311203001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17850622381 + ... + 17850622398.

Almost surely, 2^321311203011 is an apocalyptic number.

321311203011 is a deficient number, since it is larger than the sum of its proper divisors (142804979129).

321311203011 is a wasteful number, since it uses less digits than its factorization.

321311203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35701244785 (or 35701244782 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 321311203011 its reverse (110302113123), we get a palindrome (431613316134).

The spelling of 321311203011 in words is "three hundred twenty-one billion, three hundred eleven million, two hundred three thousand, eleven".