211431432342 has 16 divisors (see below), whose sum is σ = 455390777520. Its totient is φ = 65055825312.

The previous prime is 211431432301. The next prime is 211431432353. The reversal of 211431432342 is 243234134112.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1355329617 + ... + 1355329772.

It is an arithmetic number, because the mean of its divisors is an integer number (28461923595).

Almost surely, 2^211431432342 is an apocalyptic number.

211431432342 is an abundant number, since it is smaller than the sum of its proper divisors (243959345178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211431432342 is a wasteful number, since it uses less digits than its factorization.

211431432342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710659407.

The product of its digits is 13824, while the sum is 30.

Adding to 211431432342 its reverse (243234134112), we get a palindrome (454665566454).

The spelling of 211431432342 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred thirty-two thousand, three hundred forty-two".