1123400146554 has 96 divisors (see below), whose sum is σ = 2946326213376. Its totient is φ = 301994288640.

The previous prime is 1123400146553. The next prime is 1123400146591. The reversal of 1123400146554 is 4556410043211.

1123400146554 is a `hidden beast` number, since 1 + 1 + 23 + 40 + 0 + 1 + 46 + 554 = 666.

It is not an unprimeable number, because it can be changed into a prime (1123400146553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6752944 + ... + 6917300.

It is an arithmetic number, because the mean of its divisors is an integer number (30690898056).

Almost surely, 2^{1123400146554} is an apocalyptic number.

1123400146554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123400146554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473163106688).

1123400146554 is an abundant number, since it is smaller than the sum of its proper divisors (1822926066822).

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

1123400146554 is a wasteful number, since it uses less digits than its factorization.

1123400146554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167580 (or 167577 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 1123400146554 its reverse (4556410043211), we get a palindrome (5679810189765).

The spelling of 1123400146554 in words is "one trillion, one hundred twenty-three billion, four hundred million, one hundred forty-six thousand, five hundred fifty-four".