1123378033481 has 16 divisors (see below), whose sum is σ = 1302975989568. Its totient is φ = 957190732800.

The previous prime is 1123378033441. The next prime is 1123378033493. The reversal of 1123378033481 is 1843308733211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1123378033481 - 2⁶ = 1123378033417 is a prime.

It is a super-2 number, since 2×1123378033481² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1123378033441) 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, 12418355 + ... + 12508488.

It is an arithmetic number, because the mean of its divisors is an integer number (81435999348).

Almost surely, 2^{1123378033481} is an apocalyptic number.

1123378033481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1123378033481 is a deficient number, since it is larger than the sum of its proper divisors (179597956087).

1123378033481 is a wasteful number, since it uses less digits than its factorization.

1123378033481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24927112.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 1123378033481 in words is "one trillion, one hundred twenty-three billion, three hundred seventy-eight million, thirty-three thousand, four hundred eighty-one".