3211143243 has 32 divisors (see below), whose sum is σ = 5652011520. Its totient is φ = 1569999360.

The previous prime is 3211143239. The next prime is 3211143289. The reversal of 3211143243 is 3423411123.

It is a happy number.

It is not a de Polignac number, because 3211143243 - 2² = 3211143239 is a prime.

It is a super-2 number, since 2×3211143243² = 20622881854129114098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3211143043) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 404928 + ... + 412781.

It is an arithmetic number, because the mean of its divisors is an integer number (176625360).

Almost surely, 2^3211143243 is an apocalyptic number.

3211143243 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3211143243 is a deficient number, since it is larger than the sum of its proper divisors (2440868277).

3211143243 is a wasteful number, since it uses less digits than its factorization.

3211143243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817747.

The product of its digits is 1728, while the sum is 24.

The square root of 3211143243 is about 56666.9501826241. The cubic root of 3211143243 is about 1475.3211202404.

Adding to 3211143243 its reverse (3423411123), we get a palindrome (6634554366).

The spelling of 3211143243 in words is "three billion, two hundred eleven million, one hundred forty-three thousand, two hundred forty-three".