103100320121 has 4 divisors (see below), whose sum is σ = 109165044852. Its totient is φ = 97035595392.

The previous prime is 103100320061. The next prime is 103100320123. The reversal of 103100320121 is 121023001301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121023001301 = 17383 ⋅6962147.

It can be written as a sum of positive squares in 2 ways, for example, as 95766110521 + 7334209600 = 309461^2 + 85640^2 .

It is a cyclic number.

It is not a de Polignac number, because 103100320121 - 2¹⁴ = 103100303737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103100320096 and 103100320105.

It is not an unprimeable number, because it can be changed into a prime (103100320123) 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, 3032362340 + ... + 3032362373.

It is an arithmetic number, because the mean of its divisors is an integer number (27291261213).

Almost surely, 2^103100320121 is an apocalyptic number.

It is an amenable number.

103100320121 is a deficient number, since it is larger than the sum of its proper divisors (6064724731).

103100320121 is an equidigital number, since it uses as much as digits as its factorization.

103100320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064724730.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 103100320121 its reverse (121023001301), we get a palindrome (224123321422).

The spelling of 103100320121 in words is "one hundred three billion, one hundred million, three hundred twenty thousand, one hundred twenty-one".