1200043213 has 8 divisors (see below), whose sum is σ = 1209551616. Its totient is φ = 1190566800.

The previous prime is 1200043181. The next prime is 1200043223. The reversal of 1200043213 is 3123400021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1200043213 - 2⁵ = 1200043181 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 (1200043223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70320 + ... + 85702.

It is an arithmetic number, because the mean of its divisors is an integer number (151193952).

Almost surely, 2^1200043213 is an apocalyptic number.

It is an amenable number.

1200043213 is a deficient number, since it is larger than the sum of its proper divisors (9508403).

1200043213 is a wasteful number, since it uses less digits than its factorization.

1200043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15995.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1200043213 is about 34641.6398716920. The cubic root of 1200043213 is about 1062.6713247697.

Adding to 1200043213 its reverse (3123400021), we get a palindrome (4323443234).

The spelling of 1200043213 in words is "one billion, two hundred million, forty-three thousand, two hundred thirteen".