3011013121 has 4 divisors (see below), whose sum is σ = 3092391892. Its totient is φ = 2929634352.

The previous prime is 3011013119. The next prime is 3011013127. The reversal of 3011013121 is 1213101103.

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 2300257521 + 710755600 = 47961^2 + 26660^2 .

It is a cyclic number.

It is not a de Polignac number, because 3011013121 - 2¹ = 3011013119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3011013127) 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, 40689330 + ... + 40689403.

It is an arithmetic number, because the mean of its divisors is an integer number (773097973).

Almost surely, 2^3011013121 is an apocalyptic number.

It is an amenable number.

3011013121 is a deficient number, since it is larger than the sum of its proper divisors (81378771).

3011013121 is an equidigital number, since it uses as much as digits as its factorization.

3011013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81378770.

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

The square root of 3011013121 is about 54872.6992319496. The cubic root of 3011013121 is about 1444.0122672011.

Adding to 3011013121 its reverse (1213101103), we get a palindrome (4224114224).

The spelling of 3011013121 in words is "three billion, eleven million, thirteen thousand, one hundred twenty-one".