211388310042 has 64 divisors (see below), whose sum is σ = 520444189440. Its totient is φ = 55739649024.

The previous prime is 211388310031. The next prime is 211388310043. The reversal of 211388310042 is 240013883112.

211388310042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211388309985 and 211388310012.

It is not an unprimeable number, because it can be changed into a prime (211388310043) 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 31 ways as a sum of consecutive naturals, for example, 2908684 + ... + 2980472.

It is an arithmetic number, because the mean of its divisors is an integer number (8131940460).

Almost surely, 2^211388310042 is an apocalyptic number.

211388310042 is an abundant number, since it is smaller than the sum of its proper divisors (309055879398).

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

211388310042 is a wasteful number, since it uses less digits than its factorization.

211388310042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77207.

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 211388310042 in words is "two hundred eleven billion, three hundred eighty-eight million, three hundred ten thousand, forty-two".