103312121010121 has 4 divisors (see below), whose sum is σ = 103341902541700. Its totient is φ = 103282339478544.

The previous prime is 103312121010101. The next prime is 103312121010151. The reversal of 103312121010121 is 121010121213301.

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 31611786574096 + 71700334436025 = 5622436^2 + 8467605^2 .

It is a cyclic number.

It is not a de Polignac number, because 103312121010121 - 2⁵ = 103312121010089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103312121010101) 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, 14890760586 + ... + 14890767523.

It is an arithmetic number, because the mean of its divisors is an integer number (25835475635425).

Almost surely, 2^{103312121010121} is an apocalyptic number.

It is an amenable number.

103312121010121 is a deficient number, since it is larger than the sum of its proper divisors (29781531579).

103312121010121 is an equidigital number, since it uses as much as digits as its factorization.

103312121010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29781531578.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 103312121010121 its reverse (121010121213301), we get a palindrome (224322242223422).

The spelling of 103312121010121 in words is "one hundred three trillion, three hundred twelve billion, one hundred twenty-one million, ten thousand, one hundred twenty-one".