211404310442 has 16 divisors (see below), whose sum is σ = 341678427552. Its totient is φ = 97520032560.

The previous prime is 211404310427. The next prime is 211404310463. The reversal of 211404310442 is 244013404112.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2082284 + ... + 2181447.

It is an arithmetic number, because the mean of its divisors is an integer number (21354901722).

Almost surely, 2^211404310442 is an apocalyptic number.

211404310442 is a deficient number, since it is larger than the sum of its proper divisors (130274117110).

211404310442 is a wasteful number, since it uses less digits than its factorization.

211404310442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265653.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 211404310442 its reverse (244013404112), we get a palindrome (455417714554).

The spelling of 211404310442 in words is "two hundred eleven billion, four hundred four million, three hundred ten thousand, four hundred forty-two".