30011013121 has 4 divisors (see below), whose sum is σ = 31776366852. Its totient is φ = 28245659392.

The previous prime is 30011013119. The next prime is 30011013139. The reversal of 30011013121 is 12131011003.

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 22189379521 + 7821633600 = 148961^2 + 88440^2 .

It is not a de Polignac number, because 30011013121 - 2¹ = 30011013119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30011013421) 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, 882676840 + ... + 882676873.

It is an arithmetic number, because the mean of its divisors is an integer number (7944091713).

Almost surely, 2^30011013121 is an apocalyptic number.

It is an amenable number.

30011013121 is a deficient number, since it is larger than the sum of its proper divisors (1765353731).

30011013121 is a wasteful number, since it uses less digits than its factorization.

30011013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765353730.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30011013121 its reverse (12131011003), we get a palindrome (42142024124).

The spelling of 30011013121 in words is "thirty billion, eleven million, thirteen thousand, one hundred twenty-one".