21000310201030 has 16 divisors (see below), whose sum is σ = 38722523200704. Its totient is φ = 8195243005120.

The previous prime is 21000310201021. The next prime is 21000310201069. The reversal of 21000310201030 is 3010201300012.

It is a self number, because there is not a number n which added to its sum of digits gives 21000310201030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25610133982 + ... + 25610134801.

It is an arithmetic number, because the mean of its divisors is an integer number (2420157700044).

Almost surely, 2^{21000310201030} is an apocalyptic number.

21000310201030 is a deficient number, since it is larger than the sum of its proper divisors (17722212999674).

21000310201030 is a wasteful number, since it uses less digits than its factorization.

21000310201030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51220268831.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21000310201030 its reverse (3010201300012), we get a palindrome (24010511501042).

The spelling of 21000310201030 in words is "twenty-one trillion, three hundred ten million, two hundred one thousand, thirty".