1123411272 has 32 divisors (see below), whose sum is σ = 2973736800. Its totient is φ = 352442624.

The previous prime is 1123411253. The next prime is 1123411291. The reversal of 1123411272 is 2721143211.

It is an interprime number because it is at equal distance from previous prime (1123411253) and next prime (1123411291).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376322 + ... + 1377137.

It is an arithmetic number, because the mean of its divisors is an integer number (92929275).

Almost surely, 2^1123411272 is an apocalyptic number.

1123411272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123411272 is an abundant number, since it is smaller than the sum of its proper divisors (1850325528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123411272 is a wasteful number, since it uses less digits than its factorization.

1123411272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753485 (or 2753481 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 1123411272 is about 33517.3279364570. The cubic root of 1123411272 is about 1039.5520975610.

Adding to 1123411272 its reverse (2721143211), we get a palindrome (3844554483).

The spelling of 1123411272 in words is "one billion, one hundred twenty-three million, four hundred eleven thousand, two hundred seventy-two".