103201302121 has 4 divisors (see below), whose sum is σ = 103318978372. Its totient is φ = 103083625872.

The previous prime is 103201302109. The next prime is 103201302143. The reversal of 103201302121 is 121203102301.

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 38690890000 + 64510412121 = 196700^2 + 253989^2 .

It is a cyclic number.

It is not a de Polignac number, because 103201302121 - 2³⁵ = 68841563753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103201302095 and 103201302104.

It is not an unprimeable number, because it can be changed into a prime (103201342121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58836810 + ... + 58838563.

It is an arithmetic number, because the mean of its divisors is an integer number (25829744593).

Almost surely, 2^103201302121 is an apocalyptic number.

It is an amenable number.

103201302121 is a deficient number, since it is larger than the sum of its proper divisors (117676251).

103201302121 is an equidigital number, since it uses as much as digits as its factorization.

103201302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117676250.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 103201302121 its reverse (121203102301), we get a palindrome (224404404422).

The spelling of 103201302121 in words is "one hundred three billion, two hundred one million, three hundred two thousand, one hundred twenty-one".