5111440421 has 8 divisors (see below), whose sum is σ = 5165402400. Its totient is φ = 5057544400.

The previous prime is 5111440403. The next prime is 5111440427. The reversal of 5111440421 is 1240441115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5111440421 - 2¹⁰ = 5111439397 is a prime.

It is a super-2 number, since 2×5111440421² = 52253646354865314482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111440427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147890 + ... + 179148.

It is an arithmetic number, because the mean of its divisors is an integer number (645675300).

Almost surely, 2^5111440421 is an apocalyptic number.

It is an amenable number.

5111440421 is a deficient number, since it is larger than the sum of its proper divisors (53961979).

5111440421 is a wasteful number, since it uses less digits than its factorization.

5111440421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32979.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 5111440421 is about 71494.3383842385. The cubic root of 5111440421 is about 1722.5867447325.

Adding to 5111440421 its reverse (1240441115), we get a palindrome (6351881536).

The spelling of 5111440421 in words is "five billion, one hundred eleven million, four hundred forty thousand, four hundred twenty-one".