21310322002 has 8 divisors (see below), whose sum is σ = 32996627712. Its totient is φ = 10311446100.

The previous prime is 21310321999. The next prime is 21310322009. The reversal of 21310322002 is 20022301312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21310322009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171857374 + ... + 171857497.

It is an arithmetic number, because the mean of its divisors is an integer number (4124578464).

Almost surely, 2^21310322002 is an apocalyptic number.

21310322002 is a deficient number, since it is larger than the sum of its proper divisors (11686305710).

21310322002 is a wasteful number, since it uses less digits than its factorization.

21310322002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343714904.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21310322002 its reverse (20022301312), we get a palindrome (41332623314).

The spelling of 21310322002 in words is "twenty-one billion, three hundred ten million, three hundred twenty-two thousand, two".