10020310312121 has 2 divisors, whose sum is σ = 10020310312122. Its totient is φ = 10020310312120.

The previous prime is 10020310312093. The next prime is 10020310312217. The reversal of 10020310312121 is 12121301302001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8534934374521 + 1485375937600 = 2921461^2 + 1218760^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020310312121 - 2⁶ = 10020310312057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10020310312121.

It is not a weakly prime, because it can be changed into another prime (10020310315121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010155156060 + 5010155156061.

It is an arithmetic number, because the mean of its divisors is an integer number (5010155156061).

Almost surely, 2^{10020310312121} is an apocalyptic number.

It is an amenable number.

10020310312121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020310312121 is an equidigital number, since it uses as much as digits as its factorization.

10020310312121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10020310312121 its reverse (12121301302001), we get a palindrome (22141611614122).

The spelling of 10020310312121 in words is "ten trillion, twenty billion, three hundred ten million, three hundred twelve thousand, one hundred twenty-one".