21300122103130 has 16 divisors (see below), whose sum is σ = 41289467461704. Its totient is φ = 7864660468800.

The previous prime is 21300122103097. The next prime is 21300122103133. The reversal of 21300122103130 is 3130122100312.

It can be written as a sum of positive squares in 4 ways, for example, as 10861710995521 + 10438411107609 = 3295711^2 + 3230853^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21300122103098 and 21300122103107.

It is not an unprimeable number, because it can be changed into a prime (21300122103133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81923546421 + ... + 81923546680.

Almost surely, 2^{21300122103130} is an apocalyptic number.

21300122103130 is a deficient number, since it is larger than the sum of its proper divisors (19989345358574).

21300122103130 is a wasteful number, since it uses less digits than its factorization.

21300122103130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163847093121.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21300122103130 its reverse (3130122100312), we get a palindrome (24430244203442).

The spelling of 21300122103130 in words is "twenty-one trillion, three hundred billion, one hundred twenty-two million, one hundred three thousand, one hundred thirty".