21410231244 has 96 divisors (see below), whose sum is σ = 55012608000. Its totient is φ = 6454457856.

The previous prime is 21410231243. The next prime is 21410231257. The reversal of 21410231244 is 44213201412.

It is not an unprimeable number, because it can be changed into a prime (21410231243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 570277 + ... + 606659.

It is an arithmetic number, because the mean of its divisors is an integer number (573048000).

Almost surely, 2^21410231244 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 21410231244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27506304000).

21410231244 is an abundant number, since it is smaller than the sum of its proper divisors (33602376756).

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

21410231244 is a wasteful number, since it uses less digits than its factorization.

21410231244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36527 (or 36525 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21410231244 its reverse (44213201412), we get a palindrome (65623432656).

The spelling of 21410231244 in words is "twenty-one billion, four hundred ten million, two hundred thirty-one thousand, two hundred forty-four".