1056105011 has 4 divisors (see below), whose sum is σ = 1137343872. Its totient is φ = 974866152.

The previous prime is 1056104999. The next prime is 1056105013. The reversal of 1056105011 is 1105016501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1105016501 = 139 ⋅7949759.

It is not a de Polignac number, because 1056105011 - 2⁶ = 1056104947 is a prime.

It is a super-2 number, since 2×1056105011² = 2230715588518620242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056105013) 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, 40619411 + ... + 40619436.

It is an arithmetic number, because the mean of its divisors is an integer number (284335968).

Almost surely, 2^1056105011 is an apocalyptic number.

1056105011 is a deficient number, since it is larger than the sum of its proper divisors (81238861).

1056105011 is an equidigital number, since it uses as much as digits as its factorization.

1056105011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81238860.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1056105011 is about 32497.7693234474. The cubic root of 1056105011 is about 1018.3624277728.

The spelling of 1056105011 in words is "one billion, fifty-six million, one hundred five thousand, eleven".