21301130310 has 16 divisors (see below), whose sum is σ = 51122712816. Its totient is φ = 5680301408.

The previous prime is 21301130297. The next prime is 21301130317. The reversal of 21301130310 is 1303110312.

It is a super-2 number, since 2×21301130310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21301130310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301130317) 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, 355018809 + ... + 355018868.

It is an arithmetic number, because the mean of its divisors is an integer number (3195169551).

Almost surely, 2^21301130310 is an apocalyptic number.

21301130310 is an abundant number, since it is smaller than the sum of its proper divisors (29821582506).

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

21301130310 is a wasteful number, since it uses less digits than its factorization.

21301130310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710037687.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21301130310 its reverse (1303110312), we get a palindrome (22604240622).

The spelling of 21301130310 in words is "twenty-one billion, three hundred one million, one hundred thirty thousand, three hundred ten".