20201441123 has 4 divisors (see below), whose sum is σ = 20225988048. Its totient is φ = 20176894200.

The previous prime is 20201441089. The next prime is 20201441153. The reversal of 20201441123 is 32114410202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20201441123 - 2¹⁸ = 20201178979 is a prime.

It is a super-2 number, since 2×20201441123² (a number of 21 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 = 20201441095 and 20201441104.

It is not an unprimeable number, because it can be changed into a prime (20201441153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12272228 + ... + 12273873.

It is an arithmetic number, because the mean of its divisors is an integer number (5056497012).

Almost surely, 2^20201441123 is an apocalyptic number.

20201441123 is a deficient number, since it is larger than the sum of its proper divisors (24546925).

20201441123 is an equidigital number, since it uses as much as digits as its factorization.

20201441123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24546924.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20201441123 its reverse (32114410202), we get a palindrome (52315851325).

The spelling of 20201441123 in words is "twenty billion, two hundred one million, four hundred forty-one thousand, one hundred twenty-three".