30000123101 has 4 divisors (see below), whose sum is σ = 32307824892. Its totient is φ = 27692421312.

The previous prime is 30000123061. The next prime is 30000123107. The reversal of 30000123101 is 10132100003.

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 3754503076 + 26245620025 = 61274^2 + 162005^2 .

It is a cyclic number.

It is not a de Polignac number, because 30000123101 - 2³⁰ = 28926381277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000123107) 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, 1153850876 + ... + 1153850901.

It is an arithmetic number, because the mean of its divisors is an integer number (8076956223).

Almost surely, 2^30000123101 is an apocalyptic number.

It is an amenable number.

30000123101 is a deficient number, since it is larger than the sum of its proper divisors (2307701791).

30000123101 is a wasteful number, since it uses less digits than its factorization.

30000123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307701790.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 30000123101 its reverse (10132100003), we get a palindrome (40132223104).

The spelling of 30000123101 in words is "thirty billion, one hundred twenty-three thousand, one hundred one".