211301142 has 64 divisors (see below), whose sum is σ = 470292480. Its totient is φ = 62884224.

The previous prime is 211301141. The next prime is 211301159. The reversal of 211301142 is 241103112.

211301142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211301142² = 89296345221008328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211301141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326263 + ... + 326909.

It is an arithmetic number, because the mean of its divisors is an integer number (7348320).

Almost surely, 2^211301142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211301142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235146240).

211301142 is an abundant number, since it is smaller than the sum of its proper divisors (258991338).

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

211301142 is a wasteful number, since it uses less digits than its factorization.

211301142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 211301142 is about 14536.2010855657. The cubic root of 211301142 is about 595.6172696287.

Adding to 211301142 its reverse (241103112), we get a palindrome (452404254).

The spelling of 211301142 in words is "two hundred eleven million, three hundred one thousand, one hundred forty-two".