102012021209953 has 2 divisors, whose sum is σ = 102012021209954. Its totient is φ = 102012021209952.

The previous prime is 102012021209837. The next prime is 102012021210031. The reversal of 102012021209953 is 359902120210201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101559392318224 + 452628891729 = 10077668^2 + 672777^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102012021209953 is a prime.

It is not a weakly prime, because it can be changed into another prime (102012021204953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51006010604976 + 51006010604977.

It is an arithmetic number, because the mean of its divisors is an integer number (51006010604977).

Almost surely, 2^{102012021209953} is an apocalyptic number.

It is an amenable number.

102012021209953 is a deficient number, since it is larger than the sum of its proper divisors (1).

102012021209953 is an equidigital number, since it uses as much as digits as its factorization.

102012021209953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 102012021209953 in words is "one hundred two trillion, twelve billion, twenty-one million, two hundred nine thousand, nine hundred fifty-three".