1020078361 has 2 divisors, whose sum is σ = 1020078362. Its totient is φ = 1020078360.

The previous prime is 1020078349. The next prime is 1020078377. The reversal of 1020078361 is 1638700201.

1020078361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565535961 + 454542400 = 23781^2 + 21320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020078361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020078331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510039180 + 510039181.

It is an arithmetic number, because the mean of its divisors is an integer number (510039181).

Almost surely, 2^1020078361 is an apocalyptic number.

It is an amenable number.

1020078361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020078361 is an equidigital number, since it uses as much as digits as its factorization.

1020078361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1020078361 is about 31938.6656108235. The cubic root of 1020078361 is about 1006.6484866654.

Adding to 1020078361 its reverse (1638700201), we get a palindrome (2658778562).

The spelling of 1020078361 in words is "one billion, twenty million, seventy-eight thousand, three hundred sixty-one".