321105136011 has 16 divisors (see below), whose sum is σ = 471346993920. Its totient is φ = 192823765920.

The previous prime is 321105135991. The next prime is 321105136087. The reversal of 321105136011 is 110631501123.

It is not a de Polignac number, because 321105136011 - 2¹⁴ = 321105119627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321105136211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44631535 + ... + 44638728.

It is an arithmetic number, because the mean of its divisors is an integer number (29459187120).

Almost surely, 2^321105136011 is an apocalyptic number.

321105136011 is a deficient number, since it is larger than the sum of its proper divisors (150241857909).

321105136011 is a wasteful number, since it uses less digits than its factorization.

321105136011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89270386.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 321105136011 its reverse (110631501123), we get a palindrome (431736637134).

The spelling of 321105136011 in words is "three hundred twenty-one billion, one hundred five million, one hundred thirty-six thousand, eleven".