1040723811 has 6 divisors (see below), whose sum is σ = 1503267740. Its totient is φ = 693815868.

The previous prime is 1040723791. The next prime is 1040723839. The reversal of 1040723811 is 1183270401.

1040723811 is a `hidden beast` number, since 10 + 407 + 238 + 11 = 666.

1040723811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1040723811 - 2²³ = 1032335203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040723851) 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, 57817981 + ... + 57817998.

Almost surely, 2^1040723811 is an apocalyptic number.

1040723811 is a deficient number, since it is larger than the sum of its proper divisors (462543929).

1040723811 is a wasteful number, since it uses less digits than its factorization.

1040723811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115635985 (or 115635982 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1040723811 is about 32260.2512544462. The cubic root of 1040723811 is about 1013.3943928778.

The spelling of 1040723811 in words is "one billion, forty million, seven hundred twenty-three thousand, eight hundred eleven".