102012020200609 has 2 divisors, whose sum is σ = 102012020200610. Its totient is φ = 102012020200608.

The previous prime is 102012020200579. The next prime is 102012020200667. The reversal of 102012020200609 is 906002020210201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78912077263009 + 23099942937600 = 8883247^2 + 4806240^2 .

It is a cyclic number.

It is not a de Polignac number, because 102012020200609 - 2¹³ = 102012020192417 is a prime.

It is not a weakly prime, because it can be changed into another prime (102012020203609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51006010100304 + 51006010100305.

It is an arithmetic number, because the mean of its divisors is an integer number (51006010100305).

Almost surely, 2^{102012020200609} is an apocalyptic number.

It is an amenable number.

102012020200609 is a deficient number, since it is larger than the sum of its proper divisors (1).

102012020200609 is an equidigital number, since it uses as much as digits as its factorization.

102012020200609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 102012020200609 in words is "one hundred two trillion, twelve billion, twenty million, two hundred thousand, six hundred nine".