321120022131101 has 4 divisors (see below), whose sum is σ = 321163085035452. Its totient is φ = 321076959226752.

The previous prime is 321120022131091. The next prime is 321120022131113. The reversal of 321120022131101 is 101131220021123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 123212242210201 + 197907779920900 = 11100101^2 + 14067970^2 .

It is a cyclic number.

It is not a de Polignac number, because 321120022131101 - 2⁴² = 316721975619997 is a prime.

It is a super-2 number, since 2×321120022131101² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321120022131131) 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 3 ways as a sum of consecutive naturals, for example, 21531440990 + ... + 21531455903.

It is an arithmetic number, because the mean of its divisors is an integer number (80290771258863).

Almost surely, 2^{321120022131101} is an apocalyptic number.

It is an amenable number.

321120022131101 is a deficient number, since it is larger than the sum of its proper divisors (43062904351).

321120022131101 is an equidigital number, since it uses as much as digits as its factorization.

321120022131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43062904350.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 321120022131101 its reverse (101131220021123), we get a palindrome (422251242152224).

The spelling of 321120022131101 in words is "three hundred twenty-one trillion, one hundred twenty billion, twenty-two million, one hundred thirty-one thousand, one hundred one".