20413033212121 has 8 divisors (see below), whose sum is σ = 23440803688800. Its totient is φ = 17580602766240.

The previous prime is 20413033212109. The next prime is 20413033212139. The reversal of 20413033212121 is 12121233031402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20413033212121 - 2²¹ = 20413031114969 is a prime.

It is a super-3 number, since 3×20413033212121³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20413033210121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 48835007476 + ... + 48835007893.

It is an arithmetic number, because the mean of its divisors is an integer number (2930100461100).

Almost surely, 2^{20413033212121} is an apocalyptic number.

It is an amenable number.

20413033212121 is a deficient number, since it is larger than the sum of its proper divisors (3027770476679).

20413033212121 is a wasteful number, since it uses less digits than its factorization.

20413033212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97670015399.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20413033212121 its reverse (12121233031402), we get a palindrome (32534266243523).

The spelling of 20413033212121 in words is "twenty trillion, four hundred thirteen billion, thirty-three million, two hundred twelve thousand, one hundred twenty-one".