43213011 has 16 divisors (see below), whose sum is σ = 60954240. Its totient is φ = 27155520.

The previous prime is 43212991. The next prime is 43213033. The reversal of 43213011 is 11031234.

It is not a de Polignac number, because 43213011 - 2⁶ = 43212947 is a prime.

It is a super-2 number, since 2×43213011² = 3734728639372242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43213061) 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, 10231 + ... + 13823.

It is an arithmetic number, because the mean of its divisors is an integer number (3809640).

Almost surely, 2^43213011 is an apocalyptic number.

43213011 is a deficient number, since it is larger than the sum of its proper divisors (17741229).

43213011 is a wasteful number, since it uses less digits than its factorization.

43213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 43213011 is about 6573.6603958525. The cubic root of 43213011 is about 350.9173513411.

Adding to 43213011 its reverse (11031234), we get a palindrome (54244245).

The spelling of 43213011 in words is "forty-three million, two hundred thirteen thousand, eleven".