20030121330 has 16 divisors (see below), whose sum is σ = 48072291264. Its totient is φ = 5341365680.

The previous prime is 20030121323. The next prime is 20030121337. The reversal of 20030121330 is 3312103002.

It is an interprime number because it is at equal distance from previous prime (20030121323) and next prime (20030121337).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20030121337) 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, 333835326 + ... + 333835385.

It is an arithmetic number, because the mean of its divisors is an integer number (3004518204).

Almost surely, 2^20030121330 is an apocalyptic number.

20030121330 is an abundant number, since it is smaller than the sum of its proper divisors (28042169934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20030121330 is a wasteful number, since it uses less digits than its factorization.

20030121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667670721.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20030121330 its reverse (3312103002), we get a palindrome (23342224332).

The spelling of 20030121330 in words is "twenty billion, thirty million, one hundred twenty-one thousand, three hundred thirty".