210323431121212 has 24 divisors (see below), whose sum is σ = 380759888345760. Its totient is φ = 101534928788160.

The previous prime is 210323431121161. The next prime is 210323431121249. The reversal of 210323431121212 is 212121134323012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18564633 + ... + 27663919.

It is an arithmetic number, because the mean of its divisors is an integer number (15864995347740).

Almost surely, 2^{210323431121212} is an apocalyptic number.

It is an amenable number.

210323431121212 is a deficient number, since it is larger than the sum of its proper divisors (170436457224548).

210323431121212 is a wasteful number, since it uses less digits than its factorization.

210323431121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298581 (or 9298579 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 210323431121212 its reverse (212121134323012), we get a palindrome (422444565444224).

The spelling of 210323431121212 in words is "two hundred ten trillion, three hundred twenty-three billion, four hundred thirty-one million, one hundred twenty-one thousand, two hundred twelve".