21313111122030 has 256 divisors, whose sum is σ = 64271715379200. Its totient is φ = 4494644453376.

The previous prime is 21313111122019. The next prime is 21313111122071. The reversal of 21313111122030 is 3022111131312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 21313111121988 and 21313111122006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 282618309 + ... + 282693711.

It is an arithmetic number, because the mean of its divisors is an integer number (251061388200).

Almost surely, 2^{21313111122030} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21313111122030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32135857689600).

21313111122030 is an abundant number, since it is smaller than the sum of its proper divisors (42958604257170).

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

21313111122030 is a wasteful number, since it uses less digits than its factorization.

21313111122030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77560 (or 77546 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 21313111122030 its reverse (3022111131312), we get a palindrome (24335222253342).

The spelling of 21313111122030 in words is "twenty-one trillion, three hundred thirteen billion, one hundred eleven million, one hundred twenty-two thousand, thirty".