21302310011004 has 192 divisors, whose sum is σ = 61886548039680. Its totient is φ = 6281377309440.

The previous prime is 21302310010999. The next prime is 21302310011029. The reversal of 21302310011004 is 40011001320312.

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 63 ways as a sum of consecutive naturals, for example, 8556982 + ... + 10762274.

It is an arithmetic number, because the mean of its divisors is an integer number (322325771040).

Almost surely, 2^{21302310011004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21302310011004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30943274019840).

21302310011004 is an abundant number, since it is smaller than the sum of its proper divisors (40584238028676).

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

21302310011004 is a wasteful number, since it uses less digits than its factorization.

21302310011004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205537 (or 2205529 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21302310011004 its reverse (40011001320312), we get a palindrome (61313311331316).

The spelling of 21302310011004 in words is "twenty-one trillion, three hundred two billion, three hundred ten million, eleven thousand, four".