20211120003121 has 8 divisors (see below), whose sum is σ = 21566299644320. Its totient is φ = 18885084010272.

The previous prime is 20211120003101. The next prime is 20211120003131. The reversal of 20211120003121 is 12130002111202.

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 20211120003121 - 2²³ = 20211111614513 is a prime.

It is a super-2 number, since 2×20211120003121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20211120003095 and 20211120003104.

It is not an unprimeable number, because it can be changed into a prime (20211120003101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7285910655 + ... + 7285913428.

It is an arithmetic number, because the mean of its divisors is an integer number (2695787455540).

Almost surely, 2^{20211120003121} is an apocalyptic number.

It is an amenable number.

20211120003121 is a deficient number, since it is larger than the sum of its proper divisors (1355179641199).

20211120003121 is a wasteful number, since it uses less digits than its factorization.

20211120003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14571824175.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20211120003121 its reverse (12130002111202), we get a palindrome (32341122114323).

The spelling of 20211120003121 in words is "twenty trillion, two hundred eleven billion, one hundred twenty million, three thousand, one hundred twenty-one".