21300332123234 has 32 divisors (see below), whose sum is σ = 33091668221040. Its totient is φ = 10270657152000.

The previous prime is 21300332123153. The next prime is 21300332123243. The reversal of 21300332123234 is 43232123300312.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11610204390625 + 9690127732609 = 3407375^2 + 3112897^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 21300332123197 and 21300332123206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258479942 + ... + 258562334.

Almost surely, 2^{21300332123234} is an apocalyptic number.

21300332123234 is a deficient number, since it is larger than the sum of its proper divisors (11791336097806).

21300332123234 is a wasteful number, since it uses less digits than its factorization.

21300332123234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87686.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 21300332123234 its reverse (43232123300312), we get a palindrome (64532455423546).

The spelling of 21300332123234 in words is "twenty-one trillion, three hundred billion, three hundred thirty-two million, one hundred twenty-three thousand, two hundred thirty-four".