211431402043 has 24 divisors (see below), whose sum is σ = 218405376000. Its totient is φ = 204666560208.

The previous prime is 211431402037. The next prime is 211431402073. The reversal of 211431402043 is 340204134112.

211431402043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211431402043 - 2²⁵ = 211397847611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211431401999 and 211431402017.

It is not an unprimeable number, because it can be changed into a prime (211431402073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78685446 + ... + 78688132.

It is an arithmetic number, because the mean of its divisors is an integer number (9100224000).

Almost surely, 2^211431402043 is an apocalyptic number.

211431402043 is a deficient number, since it is larger than the sum of its proper divisors (6973973957).

211431402043 is a wasteful number, since it uses less digits than its factorization.

211431402043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159 (or 3112 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211431402043 its reverse (340204134112), we get a palindrome (551635536155).

The spelling of 211431402043 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred two thousand, forty-three".