1121420404104 has 288 divisors, whose sum is σ = 3860458680960. Its totient is φ = 268871581440.

The previous prime is 1121420404081. The next prime is 1121420404123. The reversal of 1121420404104 is 4014040241211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1546737 + ... + 2152959.

It is an arithmetic number, because the mean of its divisors is an integer number (13404370420).

Almost surely, 2^{1121420404104} is an apocalyptic number.

1121420404104 is a gapful number since it is divisible by the number (14) 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 1121420404104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930229340480).

1121420404104 is an abundant number, since it is smaller than the sum of its proper divisors (2739038276856).

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

1121420404104 is a wasteful number, since it uses less digits than its factorization.

1121420404104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606281 (or 606259 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 1121420404104 its reverse (4014040241211), we get a palindrome (5135460645315).

The spelling of 1121420404104 in words is "one trillion, one hundred twenty-one billion, four hundred twenty million, four hundred four thousand, one hundred four".