1420800013 has 4 divisors (see below), whose sum is σ = 1421753148. Its totient is φ = 1419846880.

The previous prime is 1420800001. The next prime is 1420800047. The reversal of 1420800013 is 3100080241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3100080241 = 353 ⋅8782097.

It can be written as a sum of positive squares in 2 ways, for example, as 929823049 + 490976964 = 30493^2 + 22158^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420800013 - 2⁵ = 1420799981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420800053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474328 + ... + 477313.

It is an arithmetic number, because the mean of its divisors is an integer number (355438287).

Almost surely, 2^1420800013 is an apocalyptic number.

It is an amenable number.

1420800013 is a deficient number, since it is larger than the sum of its proper divisors (953135).

1420800013 is an equidigital number, since it uses as much as digits as its factorization.

1420800013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953134.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1420800013 is about 37693.5009384907. The cubic root of 1420800013 is about 1124.2019065129.

Adding to 1420800013 its reverse (3100080241), we get a palindrome (4520880254).

The spelling of 1420800013 in words is "one billion, four hundred twenty million, eight hundred thousand, thirteen".