1123400301312 has 216 divisors, whose sum is σ = 3161311466544. Its totient is φ = 354107916288.

The previous prime is 1123400301311. The next prime is 1123400301313. The reversal of 1123400301312 is 2131030043211.

It is an interprime number because it is at equal distance from previous prime (1123400301311) and next prime (1123400301313).

It is not an unprimeable number, because it can be changed into a prime (1123400301311) 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, 164404648 + ... + 164411480.

It is an arithmetic number, because the mean of its divisors is an integer number (14635701234).

Almost surely, 2^{1123400301312} is an apocalyptic number.

1123400301312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123400301312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580655733272).

1123400301312 is an abundant number, since it is smaller than the sum of its proper divisors (2037911165232).

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

1123400301312 is an equidigital number, since it uses as much as digits as its factorization.

1123400301312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7483 (or 7450 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1123400301312 its reverse (2131030043211), we get a palindrome (3254430344523).

The spelling of 1123400301312 in words is "one trillion, one hundred twenty-three billion, four hundred million, three hundred one thousand, three hundred twelve".