1200341213 has 4 divisors (see below), whose sum is σ = 1200480348. Its totient is φ = 1200202080.

The previous prime is 1200341209. The next prime is 1200341239. The reversal of 1200341213 is 3121430021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3121430021 = 31 ⋅100691291.

It can be written as a sum of positive squares in 2 ways, for example, as 700237444 + 500103769 = 26462^2 + 22363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200341213 - 2² = 1200341209 is a prime.

It is a super-2 number, since 2×1200341213² = 2881638055252622738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200341191 and 1200341200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200341203) 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, 55706 + ... + 74187.

It is an arithmetic number, because the mean of its divisors is an integer number (300120087).

Almost surely, 2^1200341213 is an apocalyptic number.

It is an amenable number.

1200341213 is a deficient number, since it is larger than the sum of its proper divisors (139135).

1200341213 is an equidigital number, since it uses as much as digits as its factorization.

1200341213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139134.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1200341213 is about 34645.9407867646. The cubic root of 1200341213 is about 1062.7592798928.

Adding to 1200341213 its reverse (3121430021), we get a palindrome (4321771234).

The spelling of 1200341213 in words is "one billion, two hundred million, three hundred forty-one thousand, two hundred thirteen".