102012302309 has 2 divisors, whose sum is σ = 102012302310. Its totient is φ = 102012302308.

The previous prime is 102012302291. The next prime is 102012302323. The reversal of 102012302309 is 903203210201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97373330209 + 4638972100 = 312047^2 + 68110^2 .

It is a cyclic number.

It is not a de Polignac number, because 102012302309 - 2²⁰ = 102011253733 is a prime.

It is a super-5 number, since 5×102012302309⁵ (a number of 56 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102012302389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51006151154 + 51006151155.

It is an arithmetic number, because the mean of its divisors is an integer number (51006151155).

Almost surely, 2^102012302309 is an apocalyptic number.

It is an amenable number.

102012302309 is a deficient number, since it is larger than the sum of its proper divisors (1).

102012302309 is an equidigital number, since it uses as much as digits as its factorization.

102012302309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 102012302309 in words is "one hundred two billion, twelve million, three hundred two thousand, three hundred nine".