1310030223121 has 2 divisors, whose sum is σ = 1310030223122. Its totient is φ = 1310030223120.

The previous prime is 1310030223119. The next prime is 1310030223179. The reversal of 1310030223121 is 1213220300131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 678539350225 + 631490872896 = 823735^2 + 794664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310030223121 - 2¹ = 1310030223119 is a prime.

Together with 1310030223119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1310030223181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655015111560 + 655015111561.

It is an arithmetic number, because the mean of its divisors is an integer number (655015111561).

Almost surely, 2^{1310030223121} is an apocalyptic number.

It is an amenable number.

1310030223121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310030223121 is an equidigital number, since it uses as much as digits as its factorization.

1310030223121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1310030223121 its reverse (1213220300131), we get a palindrome (2523250523252).

The spelling of 1310030223121 in words is "one trillion, three hundred ten billion, thirty million, two hundred twenty-three thousand, one hundred twenty-one".