21002300001030 has 16 divisors (see below), whose sum is σ = 50405520002544. Its totient is φ = 5600613333600.

The previous prime is 21002300001019. The next prime is 21002300001041. The reversal of 21002300001030 is 3010000320012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21002300001019) and next prime (21002300001041).

It is a junction number, because it is equal to n+sod(n) for n = 21002300000997 and 21002300001015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350038333321 + ... + 350038333380.

It is an arithmetic number, because the mean of its divisors is an integer number (3150345000159).

Almost surely, 2^{21002300001030} is an apocalyptic number.

21002300001030 is an abundant number, since it is smaller than the sum of its proper divisors (29403220001514).

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

21002300001030 is a wasteful number, since it uses less digits than its factorization.

21002300001030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700076666711.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 21002300001030 its reverse (3010000320012), we get a palindrome (24012300321042).

The spelling of 21002300001030 in words is "twenty-one trillion, two billion, three hundred million, one thousand, thirty".