2105298368969 has 2 divisors, whose sum is σ = 2105298368970. Its totient is φ = 2105298368968.

The previous prime is 2105298368903. The next prime is 2105298368981. The reversal of 2105298368969 is 9698638925012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1699860541369 + 405437827600 = 1303787^2 + 636740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105298368969 is a prime.

It is a super-2 number, since 2×2105298368969² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2105298368899 and 2105298368908.

It is not a weakly prime, because it can be changed into another prime (2105292368969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052649184484 + 1052649184485.

It is an arithmetic number, because the mean of its divisors is an integer number (1052649184485).

Almost surely, 2^{2105298368969} is an apocalyptic number.

It is an amenable number.

2105298368969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105298368969 is an equidigital number, since it uses as much as digits as its factorization.

2105298368969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100776960, while the sum is 68.

The spelling of 2105298368969 in words is "two trillion, one hundred five billion, two hundred ninety-eight million, three hundred sixty-eight thousand, nine hundred sixty-nine".