210231321124 has 12 divisors (see below), whose sum is σ = 401350704048. Its totient is φ = 95559691400.

The previous prime is 210231321109. The next prime is 210231321127. The reversal of 210231321124 is 421123132012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 210231321095 and 210231321104.

It is not an unprimeable number, because it can be changed into a prime (210231321127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2388992242 + ... + 2388992329.

It is an arithmetic number, because the mean of its divisors is an integer number (33445892004).

Almost surely, 2^210231321124 is an apocalyptic number.

It is an amenable number.

210231321124 is a deficient number, since it is larger than the sum of its proper divisors (191119382924).

210231321124 is a wasteful number, since it uses less digits than its factorization.

210231321124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777984586 (or 4777984584 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 210231321124 its reverse (421123132012), we get a palindrome (631354453136).

The spelling of 210231321124 in words is "two hundred ten billion, two hundred thirty-one million, three hundred twenty-one thousand, one hundred twenty-four".