20201201113121 has 8 divisors (see below), whose sum is σ = 23087118228480. Its totient is φ = 17315291808288.

The previous prime is 20201201113081. The next prime is 20201201113183. The reversal of 20201201113121 is 12131110210202.

It is a happy number.

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 20201201113121 - 2³⁸ = 19926323206177 is a prime.

It is a super-2 number, since 2×20201201113121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20201201113121.

It is not an unprimeable number, because it can be changed into a prime (20201201113321) 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, 5471525 + ... + 8386893.

It is an arithmetic number, because the mean of its divisors is an integer number (2885889778560).

Almost surely, 2^{20201201113121} is an apocalyptic number.

It is an amenable number.

20201201113121 is a deficient number, since it is larger than the sum of its proper divisors (2885917115359).

20201201113121 is an equidigital number, since it uses as much as digits as its factorization.

20201201113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905263.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20201201113121 its reverse (12131110210202), we get a palindrome (32332311323323).

The spelling of 20201201113121 in words is "twenty trillion, two hundred one billion, two hundred one million, one hundred thirteen thousand, one hundred twenty-one".