3111551441 has 4 divisors (see below), whose sum is σ = 3116578800. Its totient is φ = 3106524084.

The previous prime is 3111551407. The next prime is 3111551503. The reversal of 3111551441 is 1441551113.

3111551441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111551441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3111551441.

It is not an unprimeable number, because it can be changed into a prime (3111551041) 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, 2512751 + ... + 2513988.

It is an arithmetic number, because the mean of its divisors is an integer number (779144700).

Almost surely, 2^3111551441 is an apocalyptic number.

It is an amenable number.

3111551441 is a deficient number, since it is larger than the sum of its proper divisors (5027359).

3111551441 is an equidigital number, since it uses as much as digits as its factorization.

3111551441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027358.

The product of its digits is 1200, while the sum is 26.

The square root of 3111551441 is about 55781.2821742204. The cubic root of 3111551441 is about 1459.9085826604.

The spelling of 3111551441 in words is "three billion, one hundred eleven million, five hundred fifty-one thousand, four hundred forty-one".