210124230140 has 24 divisors (see below), whose sum is σ = 481375509552. Its totient is φ = 76408810880.

The previous prime is 210124230091. The next prime is 210124230149. The reversal of 210124230140 is 41032421012.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210124230149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477554849 + ... + 477555288.

It is an arithmetic number, because the mean of its divisors is an integer number (20057312898).

Almost surely, 2^210124230140 is an apocalyptic number.

210124230140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210124230140 is an abundant number, since it is smaller than the sum of its proper divisors (271251279412).

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

210124230140 is a wasteful number, since it uses less digits than its factorization.

210124230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955110157 (or 955110155 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 210124230140 its reverse (41032421012), we get a palindrome (251156651152).

The spelling of 210124230140 in words is "two hundred ten billion, one hundred twenty-four million, two hundred thirty thousand, one hundred forty".