30120010001 has 4 divisors (see below), whose sum is σ = 30126115812. Its totient is φ = 30113904192.

The previous prime is 30120009989. The next prime is 30120010061. The reversal of 30120010001 is 10001002103.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11379768976 + 18740241025 = 106676^2 + 136895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30120010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30120010061) 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, 3045500 + ... + 3055373.

It is an arithmetic number, because the mean of its divisors is an integer number (7531528953).

Almost surely, 2^30120010001 is an apocalyptic number.

It is an amenable number.

30120010001 is a deficient number, since it is larger than the sum of its proper divisors (6105811).

30120010001 is an equidigital number, since it uses as much as digits as its factorization.

30120010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105810.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 30120010001 its reverse (10001002103), we get a palindrome (40121012104).

The spelling of 30120010001 in words is "thirty billion, one hundred twenty million, ten thousand, one".