21030313302 has 96 divisors (see below), whose sum is σ = 47338636800. Its totient is φ = 6742211904.

The previous prime is 21030313273. The next prime is 21030313319. The reversal of 21030313302 is 20331303012.

21030313302 is a `hidden beast` number, since 21 + 0 + 30 + 313 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33974349 + ... + 33974967.

It is an arithmetic number, because the mean of its divisors is an integer number (493110800).

Almost surely, 2^21030313302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21030313302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23669318400).

21030313302 is an abundant number, since it is smaller than the sum of its proper divisors (26308323498).

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

21030313302 is a wasteful number, since it uses less digits than its factorization.

21030313302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 21030313302 its reverse (20331303012), we get a palindrome (41361616314).

The spelling of 21030313302 in words is "twenty-one billion, thirty million, three hundred thirteen thousand, three hundred two".