21230331302 has 24 divisors (see below), whose sum is σ = 33628203000. Its totient is φ = 10050964128.

The previous prime is 21230331299. The next prime is 21230331313. The reversal of 21230331302 is 20313303212.

21230331302 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1508474 + ... + 1522482.

It is an arithmetic number, because the mean of its divisors is an integer number (1401175125).

Almost surely, 2^21230331302 is an apocalyptic number.

21230331302 is a deficient number, since it is larger than the sum of its proper divisors (12397871698).

21230331302 is a wasteful number, since it uses less digits than its factorization.

21230331302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16148 (or 16129 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21230331302 its reverse (20313303212), we get a palindrome (41543634514).

The spelling of 21230331302 in words is "twenty-one billion, two hundred thirty million, three hundred thirty-one thousand, three hundred two".