102102244157 has 2 divisors, whose sum is σ = 102102244158. Its totient is φ = 102102244156.

The previous prime is 102102244081. The next prime is 102102244159. The reversal of 102102244157 is 751442201201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100079853316 + 2022390841 = 316354^2 + 44971^2 .

It is an emirp because it is prime and its reverse (751442201201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102102244157 - 2¹⁶ = 102102178621 is a prime.

It is a super-3 number, since 3×102102244157³ (a number of 34 digits) contains 333 as substring.

Together with 102102244159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102244159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051122078 + 51051122079.

It is an arithmetic number, because the mean of its divisors is an integer number (51051122079).

Almost surely, 2^102102244157 is an apocalyptic number.

It is an amenable number.

102102244157 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102244157 is an equidigital number, since it uses as much as digits as its factorization.

102102244157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 29.

Adding to 102102244157 its reverse (751442201201), we get a palindrome (853544445358).

The spelling of 102102244157 in words is "one hundred two billion, one hundred two million, two hundred forty-four thousand, one hundred fifty-seven".