1121430004420 has 96 divisors (see below), whose sum is σ = 2662917949440. Its totient is φ = 393159085440.

The previous prime is 1121430004391. The next prime is 1121430004439. The reversal of 1121430004420 is 244000341211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1121430004391 and 1121430004400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116590 + ... + 1502149.

It is an arithmetic number, because the mean of its divisors is an integer number (27738728640).

Almost surely, 2^{1121430004420} is an apocalyptic number.

1121430004420 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 1121430004420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331458974720).

1121430004420 is an abundant number, since it is smaller than the sum of its proper divisors (1541487945020).

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

1121430004420 is a wasteful number, since it uses less digits than its factorization.

1121430004420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618873 (or 1618871 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1121430004420 its reverse (244000341211), we get a palindrome (1365430345631).

The spelling of 1121430004420 in words is "one trillion, one hundred twenty-one billion, four hundred thirty million, four thousand, four hundred twenty".