20102208953 has 2 divisors, whose sum is σ = 20102208954. Its totient is φ = 20102208952.

The previous prime is 20102208941. The next prime is 20102208983. The reversal of 20102208953 is 35980220102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16411403449 + 3690805504 = 128107^2 + 60752^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102208953 - 2⁴ = 20102208937 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 (20102208983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051104476 + 10051104477.

It is an arithmetic number, because the mean of its divisors is an integer number (10051104477).

Almost surely, 2^20102208953 is an apocalyptic number.

It is an amenable number.

20102208953 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102208953 is an equidigital number, since it uses as much as digits as its factorization.

20102208953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 20102208953 in words is "twenty billion, one hundred two million, two hundred eight thousand, nine hundred fifty-three".