3011311102421 has 4 divisors (see below), whose sum is σ = 3011992244844. Its totient is φ = 3010629960000.

The previous prime is 3011311102391. The next prime is 3011311102453. The reversal of 3011311102421 is 1242011131103.

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 1352266636900 + 1659044465521 = 1162870^2 + 1288039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3011311102421 is a prime.

It is a super-2 number, since 2×3011311102421² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3011311102393 and 3011311102402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011317102421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340564580 + ... + 340573421.

It is an arithmetic number, because the mean of its divisors is an integer number (752998061211).

Almost surely, 2^{3011311102421} is an apocalyptic number.

It is an amenable number.

3011311102421 is a deficient number, since it is larger than the sum of its proper divisors (681142423).

3011311102421 is an equidigital number, since it uses as much as digits as its factorization.

3011311102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681142422.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 3011311102421 its reverse (1242011131103), we get a palindrome (4253322233524).

The spelling of 3011311102421 in words is "three trillion, eleven billion, three hundred eleven million, one hundred two thousand, four hundred twenty-one".