1056396123 has 6 divisors (see below), whose sum is σ = 1525905524. Its totient is φ = 704264076.

The previous prime is 1056396113. The next prime is 1056396157. The reversal of 1056396123 is 3216936501.

1056396123 is a `hidden beast` number, since 1 + 0 + 5 + 6 + 39 + 612 + 3 = 666.

It is not a de Polignac number, because 1056396123 - 2⁶ = 1056396059 is a prime.

It is a super-3 number, since 3×1056396123³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056396113) 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, 58688665 + ... + 58688682.

Almost surely, 2^1056396123 is an apocalyptic number.

1056396123 is a deficient number, since it is larger than the sum of its proper divisors (469509401).

1056396123 is a wasteful number, since it uses less digits than its factorization.

1056396123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117377353 (or 117377350 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1056396123 is about 32502.2479684098. The cubic root of 1056396123 is about 1018.4559886356.

The spelling of 1056396123 in words is "one billion, fifty-six million, three hundred ninety-six thousand, one hundred twenty-three".