21341005152 has 96 divisors (see below), whose sum is σ = 56833539840. Its totient is φ = 7010803200.

The previous prime is 21341005139. The next prime is 21341005159. The reversal of 21341005152 is 25150014312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341005159) 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, 3494902 + ... + 3501002.

It is an arithmetic number, because the mean of its divisors is an integer number (592016040).

Almost surely, 2^21341005152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21341005152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28416769920).

21341005152 is an abundant number, since it is smaller than the sum of its proper divisors (35492534688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21341005152 is a wasteful number, since it uses less digits than its factorization.

21341005152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636 (or 6628 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 21341005152 its reverse (25150014312), we get a palindrome (46491019464).

The spelling of 21341005152 in words is "twenty-one billion, three hundred forty-one million, five thousand, one hundred fifty-two".