20032030121 has 8 divisors (see below), whose sum is σ = 21213634824. Its totient is φ = 18850786560.

The previous prime is 20032030069. The next prime is 20032030127. The reversal of 20032030121 is 12103023002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 491065600 + 19540964521 = 22160^2 + 139789^2 .

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 20032030121 - 2²⁶ = 19964921257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20032030096 and 20032030105.

It is not an unprimeable number, because it can be changed into a prime (20032030127) 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, 28391 + ... + 202163.

It is an arithmetic number, because the mean of its divisors is an integer number (2651704353).

Almost surely, 2^20032030121 is an apocalyptic number.

It is an amenable number.

20032030121 is a deficient number, since it is larger than the sum of its proper divisors (1181604703).

20032030121 is a wasteful number, since it uses less digits than its factorization.

20032030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180571.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20032030121 its reverse (12103023002), we get a palindrome (32135053123).

The spelling of 20032030121 in words is "twenty billion, thirty-two million, thirty thousand, one hundred twenty-one".