210123312312 has 32 divisors (see below), whose sum is σ = 532706993280. Its totient is φ = 69054609120.

The previous prime is 210123312283. The next prime is 210123312313. The reversal of 210123312312 is 213213321012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210123312313) 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, 61654198 + ... + 61657605.

It is an arithmetic number, because the mean of its divisors is an integer number (16647093540).

Almost surely, 2^210123312312 is an apocalyptic number.

It is an amenable number.

210123312312 is an abundant number, since it is smaller than the sum of its proper divisors (322583680968).

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

210123312312 is a wasteful number, since it uses less digits than its factorization.

210123312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123311883 (or 123311879 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 210123312312 its reverse (213213321012), we get a palindrome (423336633324).

The spelling of 210123312312 in words is "two hundred ten billion, one hundred twenty-three million, three hundred twelve thousand, three hundred twelve".