1056001011009 has 24 divisors (see below), whose sum is σ = 1641161556000. Its totient is φ = 602219830464.

The previous prime is 1056001010983. The next prime is 1056001011019. The reversal of 1056001011009 is 9001101006501.

It is not a de Polignac number, because 1056001011009 - 2²³ = 1055992622401 is a prime.

It is a super-2 number, since 2×1056001011009² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056001011009.

It is not an unprimeable number, because it can be changed into a prime (1056001011019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7124724 + ... + 7271429.

It is an arithmetic number, because the mean of its divisors is an integer number (68381731500).

Almost surely, 2^{1056001011009} is an apocalyptic number.

It is an amenable number.

1056001011009 is a deficient number, since it is larger than the sum of its proper divisors (585160544991).

1056001011009 is a wasteful number, since it uses less digits than its factorization.

1056001011009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396669 (or 14396662 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 24.

The spelling of 1056001011009 in words is "one trillion, fifty-six billion, one million, eleven thousand, nine".