211315420 has 12 divisors (see below), whose sum is σ = 443762424. Its totient is φ = 84526160.

The previous prime is 211315417. The next prime is 211315439. The reversal of 211315420 is 24513112.

211315420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5282866 + ... + 5282905.

It is an arithmetic number, because the mean of its divisors is an integer number (36980202).

Almost surely, 2^211315420 is an apocalyptic number.

211315420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211315420 is an abundant number, since it is smaller than the sum of its proper divisors (232447004).

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

211315420 is a wasteful number, since it uses less digits than its factorization.

211315420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10565780 (or 10565778 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 211315420 is about 14536.6921959571. The cubic root of 211315420 is about 595.6306849716.

Adding to 211315420 its reverse (24513112), we get a palindrome (235828532).

The spelling of 211315420 in words is "two hundred eleven million, three hundred fifteen thousand, four hundred twenty".