1011440411 has 6 divisors (see below), whose sum is σ = 1022940612. Its totient is φ = 1000068080.

The previous prime is 1011440383. The next prime is 1011440447. The reversal of 1011440411 is 1140441101.

It is a de Polignac number, because none of the positive numbers 2^k-1011440411 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 1011440411.

It is not an unprimeable number, because it can be changed into a prime (1011440461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55925 + ... + 71766.

It is an arithmetic number, because the mean of its divisors is an integer number (170490102).

Almost surely, 2^1011440411 is an apocalyptic number.

1011440411 is a deficient number, since it is larger than the sum of its proper divisors (11500201).

1011440411 is an frugal number, since it uses more digits than its factorization.

1011440411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127869 (or 127780 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1011440411 is about 31803.1509602429. The cubic root of 1011440411 is about 1003.7990195076.

Adding to 1011440411 its reverse (1140441101), we get a palindrome (2151881512).

The spelling of 1011440411 in words is "one billion, eleven million, four hundred forty thousand, four hundred eleven".