313210103202121 has 4 divisors (see below), whose sum is σ = 313210161665172. Its totient is φ = 313210044739072.

The previous prime is 313210103202071. The next prime is 313210103202167. The reversal of 313210103202121 is 121202301012313.

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 206663941907721 + 106546161294400 = 14375811^2 + 10322120^2 .

It is a cyclic number.

It is not a de Polignac number, because 313210103202121 - 2⁴¹ = 311011079946569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313210103202092 and 313210103202101.

It is not an unprimeable number, because it can be changed into a prime (313210103202421) 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, 20282116 + ... + 32214661.

It is an arithmetic number, because the mean of its divisors is an integer number (78302540416293).

Almost surely, 2^{313210103202121} is an apocalyptic number.

It is an amenable number.

313210103202121 is a deficient number, since it is larger than the sum of its proper divisors (58463051).

313210103202121 is an equidigital number, since it uses as much as digits as its factorization.

313210103202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58463050.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 313210103202121 its reverse (121202301012313), we get a palindrome (434412404214434).

The spelling of 313210103202121 in words is "three hundred thirteen trillion, two hundred ten billion, one hundred three million, two hundred two thousand, one hundred twenty-one".