102420119 has 2 divisors, whose sum is σ = 102420120. Its totient is φ = 102420118.

The previous prime is 102420077. The next prime is 102420133. The reversal of 102420119 is 911024201.

It is a strong prime.

It is an emirp because it is prime and its reverse (911024201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102420119 - 2¹⁶ = 102354583 is a prime.

It is a super-2 number, since 2×102420119² = 20979761551948322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102420119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102420169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51210059 + 51210060.

It is an arithmetic number, because the mean of its divisors is an integer number (51210060).

Almost surely, 2^102420119 is an apocalyptic number.

102420119 is a deficient number, since it is larger than the sum of its proper divisors (1).

102420119 is an equidigital number, since it uses as much as digits as its factorization.

102420119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 102420119 is about 10120.2825553440. The cubic root of 102420119 is about 467.8734758539.

The spelling of 102420119 in words is "one hundred two million, four hundred twenty thousand, one hundred nineteen".