213143431441 has 16 divisors (see below), whose sum is σ = 231610991040. Its totient is φ = 195483939840.

The previous prime is 213143431427. The next prime is 213143431481. The reversal of 213143431441 is 144134341312.

It is a cyclic number.

It is not a de Polignac number, because 213143431441 - 2⁷ = 213143431313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213143431481) 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, 1062040 + ... + 1246681.

It is an arithmetic number, because the mean of its divisors is an integer number (14475686940).

Almost surely, 2^213143431441 is an apocalyptic number.

It is an amenable number.

213143431441 is a deficient number, since it is larger than the sum of its proper divisors (18467559599).

213143431441 is a wasteful number, since it uses less digits than its factorization.

213143431441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308896.

The product of its digits is 13824, while the sum is 31.

Adding to 213143431441 its reverse (144134341312), we get a palindrome (357277772753).

The spelling of 213143431441 in words is "two hundred thirteen billion, one hundred forty-three million, four hundred thirty-one thousand, four hundred forty-one".