1201300405 has 4 divisors (see below), whose sum is σ = 1441560492. Its totient is φ = 961040320.

The previous prime is 1201300381. The next prime is 1201300481. The reversal of 1201300405 is 5040031021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5040031021 = 17 ⋅296472413.

It can be written as a sum of positive squares in 2 ways, for example, as 411521796 + 789778609 = 20286^2 + 28103^2 .

It is not a de Polignac number, because 1201300405 - 2⁷ = 1201300277 is a prime.

It is a super-3 number, since 3×1201300405³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120130036 + ... + 120130045.

It is an arithmetic number, because the mean of its divisors is an integer number (360390123).

Almost surely, 2^1201300405 is an apocalyptic number.

It is an amenable number.

1201300405 is a deficient number, since it is larger than the sum of its proper divisors (240260087).

1201300405 is an equidigital number, since it uses as much as digits as its factorization.

1201300405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240260086.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1201300405 is about 34659.7807984990. The cubic root of 1201300405 is about 1063.0422879734.

Adding to 1201300405 its reverse (5040031021), we get a palindrome (6241331426).

The spelling of 1201300405 in words is "one billion, two hundred one million, three hundred thousand, four hundred five".