1123004311 has 16 divisors (see below), whose sum is σ = 1327455360. Its totient is φ = 936580320.

The previous prime is 1123004303. The next prime is 1123004317. The reversal of 1123004311 is 1134003211.

It is not a de Polignac number, because 1123004311 - 2³ = 1123004303 is a prime.

It is a super-2 number, since 2×1123004311² = 2522277365049169442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123004317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781 + ... + 47398.

It is an arithmetic number, because the mean of its divisors is an integer number (82965960).

Almost surely, 2^1123004311 is an apocalyptic number.

1123004311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123004311 is a deficient number, since it is larger than the sum of its proper divisors (204451049).

1123004311 is a wasteful number, since it uses less digits than its factorization.

1123004311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48366.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1123004311 is about 33511.2564819644. The cubic root of 1123004311 is about 1039.4265548600.

Adding to 1123004311 its reverse (1134003211), we get a palindrome (2257007522).

It can be divided in two parts, 112300 and 4311, that added together give a palindrome (116611).

The spelling of 1123004311 in words is "one billion, one hundred twenty-three million, four thousand, three hundred eleven".