1101263056 has 20 divisors (see below), whose sum is σ = 2141818272. Its totient is φ = 548535776.

The previous prime is 1101263041. The next prime is 1101263057. The reversal of 1101263056 is 6503621011.

It is a self number, because there is not a number n which added to its sum of digits gives 1101263056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101263057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126646 + ... + 135061.

Almost surely, 2^1101263056 is an apocalyptic number.

1101263056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1101263056 is a deficient number, since it is larger than the sum of its proper divisors (1040555216).

1101263056 is a wasteful number, since it uses less digits than its factorization.

1101263056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261978 (or 261972 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1101263056 is about 33185.2837263749. The cubic root of 1101263056 is about 1032.6750636015.

Adding to 1101263056 its reverse (6503621011), we get a palindrome (7604884067).

The spelling of 1101263056 in words is "one billion, one hundred one million, two hundred sixty-three thousand, fifty-six".