21342310412 has 12 divisors (see below), whose sum is σ = 37821816480. Its totient is φ = 10536077136.

The previous prime is 21342310411. The next prime is 21342310421. The reversal of 21342310412 is 21401324312.

It is not an unprimeable number, because it can be changed into a prime (21342310411) 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, 33769163 + ... + 33769794.

It is an arithmetic number, because the mean of its divisors is an integer number (3151818040).

Almost surely, 2^21342310412 is an apocalyptic number.

It is an amenable number.

21342310412 is a deficient number, since it is larger than the sum of its proper divisors (16479506068).

21342310412 is a wasteful number, since it uses less digits than its factorization.

21342310412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67539040 (or 67539038 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21342310412 its reverse (21401324312), we get a palindrome (42743634724).

The spelling of 21342310412 in words is "twenty-one billion, three hundred forty-two million, three hundred ten thousand, four hundred twelve".