103120321321 has 4 divisors (see below), whose sum is σ = 106676194500. Its totient is φ = 99564448144.

The previous prime is 103120321309. The next prime is 103120321351. The reversal of 103120321321 is 123123021301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123123021301 = 7 ⋅17589003043.

It can be written as a sum of positive squares in 2 ways, for example, as 64586631321 + 38533690000 = 254139^2 + 196300^2 .

It is a cyclic number.

It is not a de Polignac number, because 103120321321 - 2¹³ = 103120313129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103120321351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1777936546 + ... + 1777936603.

It is an arithmetic number, because the mean of its divisors is an integer number (26669048625).

Almost surely, 2^103120321321 is an apocalyptic number.

It is an amenable number.

103120321321 is a deficient number, since it is larger than the sum of its proper divisors (3555873179).

103120321321 is an equidigital number, since it uses as much as digits as its factorization.

103120321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555873178.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103120321321 its reverse (123123021301), we get a palindrome (226243342622).

The spelling of 103120321321 in words is "one hundred three billion, one hundred twenty million, three hundred twenty-one thousand, three hundred twenty-one".