21312103141412 has 12 divisors (see below), whose sum is σ = 37463427945216. Its totient is φ = 10608266585640.

The previous prime is 21312103141411. The next prime is 21312103141429. The reversal of 21312103141412 is 21414130121312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21312103141411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11946245264 + ... + 11946247047.

It is an arithmetic number, because the mean of its divisors is an integer number (3121952328768).

Almost surely, 2^{21312103141412} is an apocalyptic number.

It is an amenable number.

21312103141412 is a deficient number, since it is larger than the sum of its proper divisors (16151324803804).

21312103141412 is a wasteful number, since it uses less digits than its factorization.

21312103141412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23892492538 (or 23892492536 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 21312103141412 its reverse (21414130121312), we get a palindrome (42726233262724).

The spelling of 21312103141412 in words is "twenty-one trillion, three hundred twelve billion, one hundred three million, one hundred forty-one thousand, four hundred twelve".