211331001212312 has 32 divisors (see below), whose sum is σ = 396422671814400. Its totient is φ = 105618297125664.

The previous prime is 211331001212263. The next prime is 211331001212323. The reversal of 211331001212312 is 213212100133112.

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, 203015063 + ... + 204053369.

It is an arithmetic number, because the mean of its divisors is an integer number (12388208494200).

Almost surely, 2^{211331001212312} is an apocalyptic number.

It is an amenable number.

211331001212312 is a deficient number, since it is larger than the sum of its proper divisors (185091670602088).

211331001212312 is a wasteful number, since it uses less digits than its factorization.

211331001212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049655 (or 1049651 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 211331001212312 its reverse (213212100133112), we get a palindrome (424543101345424).

The spelling of 211331001212312 in words is "two hundred eleven trillion, three hundred thirty-one billion, one million, two hundred twelve thousand, three hundred twelve".