102205314139 has 2 divisors, whose sum is σ = 102205314140. Its totient is φ = 102205314138.

The previous prime is 102205314137. The next prime is 102205314143. The reversal of 102205314139 is 931413502201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102205314139 - 2¹ = 102205314137 is a prime.

It is a super-2 number, since 2×102205314139² (a number of 23 digits) contains 22 as substring.

Together with 102205314137, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102205314139.

It is not a weakly prime, because it can be changed into another prime (102205314137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51102657069 + 51102657070.

It is an arithmetic number, because the mean of its divisors is an integer number (51102657070).

Almost surely, 2^102205314139 is an apocalyptic number.

102205314139 is a deficient number, since it is larger than the sum of its proper divisors (1).

102205314139 is an equidigital number, since it uses as much as digits as its factorization.

102205314139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 102205314139 in words is "one hundred two billion, two hundred five million, three hundred fourteen thousand, one hundred thirty-nine".