21011023002300 has 36 divisors (see below), whose sum is σ = 60791893220856. Its totient is φ = 5602939467200.

The previous prime is 21011023002251. The next prime is 21011023002317. The reversal of 21011023002300 is 320032011012.

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 21011023002300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35018371371 + ... + 35018371970.

Almost surely, 2^{21011023002300} is an apocalyptic number.

21011023002300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21011023002300 is an abundant number, since it is smaller than the sum of its proper divisors (39780870218556).

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

21011023002300 is a wasteful number, since it uses less digits than its factorization.

21011023002300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70036743358 (or 70036743351 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21011023002300 its reverse (320032011012), we get a palindrome (21331055013312).

The spelling of 21011023002300 in words is "twenty-one trillion, eleven billion, twenty-three million, two thousand, three hundred".