102420361 has 2 divisors, whose sum is σ = 102420362. Its totient is φ = 102420360.

The previous prime is 102420349. The next prime is 102420377. The reversal of 102420361 is 163024201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79762761 + 22657600 = 8931^2 + 4760^2 .

It is a cyclic number.

It is not a de Polignac number, because 102420361 - 2⁷ = 102420233 is a prime.

It is not a weakly prime, because it can be changed into another prime (102420061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51210180 + 51210181.

It is an arithmetic number, because the mean of its divisors is an integer number (51210181).

Almost surely, 2^102420361 is an apocalyptic number.

It is an amenable number.

102420361 is a deficient number, since it is larger than the sum of its proper divisors (1).

102420361 is an equidigital number, since it uses as much as digits as its factorization.

102420361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 102420361 is about 10120.2945115248. The cubic root of 102420361 is about 467.8738443534.

Adding to 102420361 its reverse (163024201), we get a palindrome (265444562).

The spelling of 102420361 in words is "one hundred two million, four hundred twenty thousand, three hundred sixty-one".