21041352024 has 128 divisors (see below), whose sum is σ = 67108884480. Its totient is φ = 5338166400.

The previous prime is 21041351983. The next prime is 21041352037. The reversal of 21041352024 is 42025314012.

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

It is a junction number, because it is equal to n+sod(n) for n = 21041351985 and 21041352003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52932 + ... + 211859.

It is an arithmetic number, because the mean of its divisors is an integer number (524288160).

Almost surely, 2^21041352024 is an apocalyptic number.

21041352024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21041352024 is an abundant number, since it is smaller than the sum of its proper divisors (46067532456).

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

21041352024 is a wasteful number, since it uses less digits than its factorization.

21041352024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264861 (or 264857 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 21041352024 its reverse (42025314012), we get a palindrome (63066666036).

The spelling of 21041352024 in words is "twenty-one billion, forty-one million, three hundred fifty-two thousand, twenty-four".