21310412324 has 24 divisors (see below), whose sum is σ = 37750497120. Its totient is φ = 10525131776.

The previous prime is 21310412323. The next prime is 21310412353. The reversal of 21310412324 is 42321401312.

It is a super-3 number, since 3×21310412324³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21310412324.

It is not an unprimeable number, because it can be changed into a prime (21310412323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76772 + ... + 220260.

It is an arithmetic number, because the mean of its divisors is an integer number (1572937380).

Almost surely, 2^21310412324 is an apocalyptic number.

It is an amenable number.

21310412324 is a deficient number, since it is larger than the sum of its proper divisors (16440084796).

21310412324 is a wasteful number, since it uses less digits than its factorization.

21310412324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143947 (or 143945 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21310412324 its reverse (42321401312), we get a palindrome (63631813636).

The spelling of 21310412324 in words is "twenty-one billion, three hundred ten million, four hundred twelve thousand, three hundred twenty-four".