20230033121 has 4 divisors (see below), whose sum is σ = 20927620500. Its totient is φ = 19532445744.

The previous prime is 20230033069. The next prime is 20230033123. The reversal of 20230033121 is 12133003202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12133003202 = 2 ⋅6066501601.

It can be written as a sum of positive squares in 2 ways, for example, as 16005033121 + 4225000000 = 126511^2 + 65000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20230033121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20230033121.

It is not an unprimeable number, because it can be changed into a prime (20230033123) 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, 348793646 + ... + 348793703.

It is an arithmetic number, because the mean of its divisors is an integer number (5231905125).

Almost surely, 2^20230033121 is an apocalyptic number.

It is an amenable number.

20230033121 is a deficient number, since it is larger than the sum of its proper divisors (697587379).

20230033121 is an equidigital number, since it uses as much as digits as its factorization.

20230033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697587378.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20230033121 its reverse (12133003202), we get a palindrome (32363036323).

The spelling of 20230033121 in words is "twenty billion, two hundred thirty million, thirty-three thousand, one hundred twenty-one".