2102120120953 has 2 divisors, whose sum is σ = 2102120120954. Its totient is φ = 2102120120952.

The previous prime is 2102120120921. The next prime is 2102120121007. The reversal of 2102120120953 is 3590210212012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1247146197049 + 854973923904 = 1116757^2 + 924648^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102120120953 - 2⁵ = 2102120120921 is a prime.

It is not a weakly prime, because it can be changed into another prime (2102120130953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051060060476 + 1051060060477.

It is an arithmetic number, because the mean of its divisors is an integer number (1051060060477).

Almost surely, 2^{2102120120953} is an apocalyptic number.

It is an amenable number.

2102120120953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102120120953 is an equidigital number, since it uses as much as digits as its factorization.

2102120120953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 2102120120953 its reverse (3590210212012), we get a palindrome (5692330332965).

The spelling of 2102120120953 in words is "two trillion, one hundred two billion, one hundred twenty million, one hundred twenty thousand, nine hundred fifty-three".