1056031605511 has 4 divisors (see below), whose sum is σ = 1056152483152. Its totient is φ = 1055910727872.

The previous prime is 1056031605493. The next prime is 1056031605569. The reversal of 1056031605511 is 1155061306501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1056031605511 - 2⁵ = 1056031605479 is a prime.

It is a super-2 number, since 2×1056031605511² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056031603511) 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 3 ways as a sum of consecutive naturals, for example, 60425715 + ... + 60443188.

It is an arithmetic number, because the mean of its divisors is an integer number (264038120788).

Almost surely, 2^{1056031605511} is an apocalyptic number.

1056031605511 is a deficient number, since it is larger than the sum of its proper divisors (120877641).

1056031605511 is an equidigital number, since it uses as much as digits as its factorization.

1056031605511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120877640.

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 1056031605511 in words is "one trillion, fifty-six billion, thirty-one million, six hundred five thousand, five hundred eleven".