210101340 has 24 divisors (see below), whose sum is σ = 588283920. Its totient is φ = 56027008.

The previous prime is 210101329. The next prime is 210101341. The reversal of 210101340 is 43101012.

It is a happy number.

210101340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1750785 + ... + 1750904.

It is an arithmetic number, because the mean of its divisors is an integer number (24511830).

Almost surely, 2^210101340 is an apocalyptic number.

210101340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210101340 is an abundant number, since it is smaller than the sum of its proper divisors (378182580).

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

210101340 is a wasteful number, since it uses less digits than its factorization.

210101340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501701 (or 3501699 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 210101340 is about 14494.8728866451. The cubic root of 210101340 is about 594.4877921308.

Adding to 210101340 its reverse (43101012), we get a palindrome (253202352).

The spelling of 210101340 in words is "two hundred ten million, one hundred one thousand, three hundred forty".