321440233021011 has 80 divisors (see below), whose sum is σ = 525984420376800. Its totient is φ = 194417099776512.

The previous prime is 321440233020901. The next prime is 321440233021057. The reversal of 321440233021011 is 110120332044123.

321440233021011 is a `hidden beast` number, since 3 + 2 + 1 + 4 + 402 + 3 + 30 + 210 + 11 = 666.

It is not a de Polignac number, because 321440233021011 - 2⁷ = 321440233020883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (321440233021091) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 306197005 + ... + 307244993.

It is an arithmetic number, because the mean of its divisors is an integer number (6574805254710).

Almost surely, 2^{321440233021011} is an apocalyptic number.

321440233021011 is a deficient number, since it is larger than the sum of its proper divisors (204544187355789).

321440233021011 is a wasteful number, since it uses less digits than its factorization.

321440233021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053010 (or 1053001 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 321440233021011 its reverse (110120332044123), we get a palindrome (431560565065134).

The spelling of 321440233021011 in words is "three hundred twenty-one trillion, four hundred forty billion, two hundred thirty-three million, twenty-one thousand, eleven".