21124231420334 has 32 divisors (see below), whose sum is σ = 36235026302400. Its totient is φ = 9047729129472.

The previous prime is 21124231420291. The next prime is 21124231420337. The reversal of 21124231420334 is 43302413242112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21124231420334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21124231420337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163901582 + ... + 164030414.

It is an arithmetic number, because the mean of its divisors is an integer number (1132344571950).

Almost surely, 2^{21124231420334} is an apocalyptic number.

21124231420334 is a deficient number, since it is larger than the sum of its proper divisors (15110794882066).

21124231420334 is a wasteful number, since it uses less digits than its factorization.

21124231420334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135884.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 21124231420334 its reverse (43302413242112), we get a palindrome (64426644662446).

The spelling of 21124231420334 in words is "twenty-one trillion, one hundred twenty-four billion, two hundred thirty-one million, four hundred twenty thousand, three hundred thirty-four".