2070807121 has 2 divisors, whose sum is σ = 2070807122. Its totient is φ = 2070807120.

The previous prime is 2070807113. The next prime is 2070807191. The reversal of 2070807121 is 1217080702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2051093521 + 19713600 = 45289^2 + 4440^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070807121 - 2³ = 2070807113 is a prime.

It is a super-3 number, since 3×2070807121³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2070807121.

It is not a weakly prime, because it can be changed into another prime (2070807191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035403560 + 1035403561.

It is an arithmetic number, because the mean of its divisors is an integer number (1035403561).

Almost surely, 2^2070807121 is an apocalyptic number.

It is an amenable number.

2070807121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2070807121 is an equidigital number, since it uses as much as digits as its factorization.

2070807121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 2070807121 is about 45506.1217969627. The cubic root of 2070807121 is about 1274.6175186957.

Adding to 2070807121 its reverse (1217080702), we get a palindrome (3287887823).

The spelling of 2070807121 in words is "two billion, seventy million, eight hundred seven thousand, one hundred twenty-one".