30030121000020 has 48 divisors (see below), whose sum is σ = 84085726874688. Its totient is φ = 8007900069120.

The previous prime is 30030120999979. The next prime is 30030121000027. The reversal of 30030121000020 is 2000012103003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030121000027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439041 + ... + 7762280.

It is an arithmetic number, because the mean of its divisors is an integer number (1751785976556).

Almost surely, 2^{30030121000020} is an apocalyptic number.

30030121000020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30030121000020 is an abundant number, since it is smaller than the sum of its proper divisors (54055605874668).

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

30030121000020 is a wasteful number, since it uses less digits than its factorization.

30030121000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262360 (or 8262358 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30030121000020 its reverse (2000012103003), we get a palindrome (32030133103023).

The spelling of 30030121000020 in words is "thirty trillion, thirty billion, one hundred twenty-one million, twenty", and thus it is an aban number.