1213443471 has 16 divisors (see below), whose sum is σ = 1633849344. Its totient is φ = 801025344.

The previous prime is 1213443461. The next prime is 1213443521. The reversal of 1213443471 is 1743443121.

1213443471 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1213443471 - 2⁹ = 1213442959 is a prime.

It is a super-3 number, since 3×1213443471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213443401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211675 + ... + 217331.

It is an arithmetic number, because the mean of its divisors is an integer number (102115584).

Almost surely, 2^1213443471 is an apocalyptic number.

1213443471 is a deficient number, since it is larger than the sum of its proper divisors (420405873).

1213443471 is a wasteful number, since it uses less digits than its factorization.

1213443471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6350.

The product of its digits is 8064, while the sum is 30.

The square root of 1213443471 is about 34834.5155126349. The cubic root of 1213443471 is about 1066.6121252168.

Adding to 1213443471 its reverse (1743443121), we get a palindrome (2956886592).

The spelling of 1213443471 in words is "one billion, two hundred thirteen million, four hundred forty-three thousand, four hundred seventy-one".