211314402342 has 24 divisors (see below), whose sum is σ = 474805201416. Its totient is φ = 70438133952.

The previous prime is 211314402319. The next prime is 211314402373. The reversal of 211314402342 is 243204413112.

211314402342 is a `hidden beast` number, since 2 + 1 + 1 + 314 + 4 + 0 + 2 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 11 ways as a sum of consecutive naturals, for example, 217401163 + ... + 217402134.

It is an arithmetic number, because the mean of its divisors is an integer number (19783550059).

Almost surely, 2^211314402342 is an apocalyptic number.

211314402342 is an abundant number, since it is smaller than the sum of its proper divisors (263490799074).

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

211314402342 is an equidigital number, since it uses as much as digits as its factorization.

211314402342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434803314 (or 434803302 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 211314402342 its reverse (243204413112), we get a palindrome (454518815454).

The spelling of 211314402342 in words is "two hundred eleven billion, three hundred fourteen million, four hundred two thousand, three hundred forty-two".