211404313143 has 12 divisors (see below), whose sum is σ = 321433458840. Its totient is φ = 133518513456.

The previous prime is 211404313139. The next prime is 211404313189. The reversal of 211404313143 is 341313404112.

211404313143 is a `hidden beast` number, since 21 + 140 + 431 + 31 + 43 = 666.

It is not a de Polignac number, because 211404313143 - 2² = 211404313139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211404317143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618141096 + ... + 618141437.

It is an arithmetic number, because the mean of its divisors is an integer number (26786121570).

Almost surely, 2^211404313143 is an apocalyptic number.

211404313143 is a deficient number, since it is larger than the sum of its proper divisors (110029145697).

211404313143 is a wasteful number, since it uses less digits than its factorization.

211404313143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236282558 (or 1236282555 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 211404313143 its reverse (341313404112), we get a palindrome (552717717255).

The spelling of 211404313143 in words is "two hundred eleven billion, four hundred four million, three hundred thirteen thousand, one hundred forty-three".