1121042234400 has 144 divisors (see below), whose sum is σ = 3980719155168. Its totient is φ = 271767808000.

The previous prime is 1121042234393. The next prime is 1121042234509. The reversal of 1121042234400 is 44322401211.

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 23 ways as a sum of consecutive naturals, for example, 21205461 + ... + 21258260.

It is an arithmetic number, because the mean of its divisors is an integer number (27643883022).

Almost surely, 2^{1121042234400} is an apocalyptic number.

1121042234400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121042234400 is an abundant number, since it is smaller than the sum of its proper divisors (2859676920768).

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

1121042234400 is a wasteful number, since it uses less digits than its factorization.

1121042234400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42463755 (or 42463742 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1121042234400 its reverse (44322401211), we get a palindrome (1165364635611).

The spelling of 1121042234400 in words is "one trillion, one hundred twenty-one billion, forty-two million, two hundred thirty-four thousand, four hundred".