101321140121 has 4 divisors (see below), whose sum is σ = 101321816244. Its totient is φ = 101320464000.

The previous prime is 101321140049. The next prime is 101321140159. The reversal of 101321140121 is 121041123101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 39257874496 + 62063265625 = 198136^2 + 249125^2 .

It is a cyclic number.

It is not a de Polignac number, because 101321140121 - 2²² = 101316945817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101321140121.

It is not an unprimeable number, because it can be changed into a prime (101321140171) 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, 1760 + ... + 450161.

It is an arithmetic number, because the mean of its divisors is an integer number (25330454061).

Almost surely, 2^101321140121 is an apocalyptic number.

It is an amenable number.

101321140121 is a deficient number, since it is larger than the sum of its proper divisors (676123).

101321140121 is an equidigital number, since it uses as much as digits as its factorization.

101321140121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676122.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 101321140121 its reverse (121041123101), we get a palindrome (222362263222).

The spelling of 101321140121 in words is "one hundred one billion, three hundred twenty-one million, one hundred forty thousand, one hundred twenty-one".