21310202324 has 24 divisors (see below), whose sum is σ = 39260712960. Its totient is φ = 10093000896.

The previous prime is 21310202323. The next prime is 21310202341. The reversal of 21310202324 is 42320201312.

It is a junction number, because it is equal to n+sod(n) for n = 21310202296 and 21310202305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310202323) 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, 836909 + ... + 861995.

It is an arithmetic number, because the mean of its divisors is an integer number (1635863040).

Almost surely, 2^21310202324 is an apocalyptic number.

It is an amenable number.

21310202324 is a deficient number, since it is larger than the sum of its proper divisors (17950510636).

21310202324 is a wasteful number, since it uses less digits than its factorization.

21310202324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36287 (or 36285 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21310202324 its reverse (42320201312), we get a palindrome (63630403636).

The spelling of 21310202324 in words is "twenty-one billion, three hundred ten million, two hundred two thousand, three hundred twenty-four".