1123444204400 has 120 divisors (see below), whose sum is σ = 3266107339680. Its totient is φ = 362523156480.

The previous prime is 1123444204391. The next prime is 1123444204409. The reversal of 1123444204400 is 44024443211.

It is an interprime number because it is at equal distance from previous prime (1123444204391) and next prime (1123444204409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123444204409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11753285 + ... + 11848484.

It is an arithmetic number, because the mean of its divisors is an integer number (27217561164).

Almost surely, 2^{1123444204400} is an apocalyptic number.

1123444204400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123444204400 is an abundant number, since it is smaller than the sum of its proper divisors (2142663135280).

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

1123444204400 is a wasteful number, since it uses less digits than its factorization.

1123444204400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23601811 (or 23601800 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 1123444204400 its reverse (44024443211), we get a palindrome (1167468647611).

The spelling of 1123444204400 in words is "one trillion, one hundred twenty-three billion, four hundred forty-four million, two hundred four thousand, four hundred".