1121400033 has 32 divisors (see below), whose sum is σ = 1657848192. Its totient is φ = 669772800.

The previous prime is 1121400031. The next prime is 1121400041. The reversal of 1121400033 is 3300041211.

It is not a de Polignac number, because 1121400033 - 2¹ = 1121400031 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1121399985 and 1121400021.

It is not an unprimeable number, because it can be changed into a prime (1121400031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823273 + ... + 824633.

It is an arithmetic number, because the mean of its divisors is an integer number (51807756).

Almost surely, 2^1121400033 is an apocalyptic number.

1121400033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1121400033 is a deficient number, since it is larger than the sum of its proper divisors (536448159).

1121400033 is a wasteful number, since it uses less digits than its factorization.

1121400033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1121400033 is about 33487.3115224259. The cubic root of 1121400033 is about 1038.9313582333.

Adding to 1121400033 its reverse (3300041211), we get a palindrome (4421441244).

The spelling of 1121400033 in words is "one billion, one hundred twenty-one million, four hundred thousand, thirty-three".