2120100953 has 2 divisors, whose sum is σ = 2120100954. Its totient is φ = 2120100952.

The previous prime is 2120100949. The next prime is 2120100973. The reversal of 2120100953 is 3590010212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1506448969 + 613651984 = 38813^2 + 24772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120100953 - 2² = 2120100949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2120100973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060050476 + 1060050477.

It is an arithmetic number, because the mean of its divisors is an integer number (1060050477).

Almost surely, 2^2120100953 is an apocalyptic number.

It is an amenable number.

2120100953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120100953 is an equidigital number, since it uses as much as digits as its factorization.

2120100953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 2120100953 is about 46044.5539993602. The cubic root of 2120100953 is about 1284.6520484925.

The spelling of 2120100953 in words is "two billion, one hundred twenty million, one hundred thousand, nine hundred fifty-three".