20310200213121 has 128 divisors (see below), whose sum is σ = 37634628218880. Its totient is φ = 10540056960000.

The previous prime is 20310200213113. The next prime is 20310200213129. The reversal of 20310200213121 is 12131200201302.

20310200213121 is a `hidden beast` number, since 2 + 0 + 310 + 20 + 0 + 21 + 312 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (20310200213113) and next prime (20310200213129).

It is not a de Polignac number, because 20310200213121 - 2³ = 20310200213113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20310200213094 and 20310200213103.

It is not an unprimeable number, because it can be changed into a prime (20310200213129) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 48940746 + ... + 49353996.

It is an arithmetic number, because the mean of its divisors is an integer number (294020532960).

Almost surely, 2^{20310200213121} is an apocalyptic number.

20310200213121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20310200213121 is a deficient number, since it is larger than the sum of its proper divisors (17324428005759).

20310200213121 is a wasteful number, since it uses less digits than its factorization.

20310200213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413604 (or 413598 counting only the distinct ones).

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

Adding to 20310200213121 its reverse (12131200201302), we get a palindrome (32441400414423).

The spelling of 20310200213121 in words is "twenty trillion, three hundred ten billion, two hundred million, two hundred thirteen thousand, one hundred twenty-one".