2161001035313 has 2 divisors, whose sum is σ = 2161001035314. Its totient is φ = 2161001035312.

The previous prime is 2161001035289. The next prime is 2161001035321. The reversal of 2161001035313 is 3135301001612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1372487227024 + 788513808289 = 1171532^2 + 887983^2 .

It is a cyclic number.

It is not a de Polignac number, because 2161001035313 - 2⁸ = 2161001035057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2161001035013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080500517656 + 1080500517657.

It is an arithmetic number, because the mean of its divisors is an integer number (1080500517657).

Almost surely, 2^{2161001035313} is an apocalyptic number.

It is an amenable number.

2161001035313 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161001035313 is an equidigital number, since it uses as much as digits as its factorization.

2161001035313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 2161001035313 its reverse (3135301001612), we get a palindrome (5296302036925).

The spelling of 2161001035313 in words is "two trillion, one hundred sixty-one billion, one million, thirty-five thousand, three hundred thirteen".