1121440430000 has 200 divisors, whose sum is σ = 3030843769536. Its totient is φ = 398311200000.

The previous prime is 1121440429973. The next prime is 1121440430003. The reversal of 1121440430000 is 340441211.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1121440430003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4611455 + ... + 4848545.

Almost surely, 2^{1121440430000} is an apocalyptic number.

1121440430000 is a gapful number since it is divisible by the number (10) 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 1121440430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515421884768).

1121440430000 is an abundant number, since it is smaller than the sum of its proper divisors (1909403339536).

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

1121440430000 is a wasteful number, since it uses less digits than its factorization.

1121440430000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237173 (or 237152 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1121440430000 its reverse (340441211), we get a palindrome (1121780871211).

The spelling of 1121440430000 in words is "one trillion, one hundred twenty-one billion, four hundred forty million, four hundred thirty thousand".