1056400011 has 12 divisors (see below), whose sum is σ = 1526249920. Its totient is φ = 704110320.

The previous prime is 1056400003. The next prime is 1056400021. The reversal of 1056400011 is 1100046501.

1056400011 is a `hidden beast` number, since 10 + 5 + 640 + 0 + 0 + 11 = 666.

It is not a de Polignac number, because 1056400011 - 2³ = 1056400003 is a prime.

It is a super-2 number, since 2×1056400011² = 2231961966481600242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056400021) 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 11 ways as a sum of consecutive naturals, for example, 41985 + ... + 62253.

Almost surely, 2^1056400011 is an apocalyptic number.

1056400011 is a deficient number, since it is larger than the sum of its proper divisors (469849909).

1056400011 is a wasteful number, since it uses less digits than its factorization.

1056400011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26066 (or 26063 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1056400011 is about 32502.3077796024. The cubic root of 1056400011 is about 1018.4572380886.

Adding to 1056400011 its reverse (1100046501), we get a palindrome (2156446512).

The spelling of 1056400011 in words is "one billion, fifty-six million, four hundred thousand, eleven".