1121400027 has 24 divisors (see below), whose sum is σ = 1796032368. Its totient is φ = 668491200.

The previous prime is 1121400017. The next prime is 1121400031. The reversal of 1121400027 is 7200041211.

It is not a de Polignac number, because 1121400027 - 2⁷ = 1121399899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121399982 and 1121400009.

It is not an unprimeable number, because it can be changed into a prime (1121400017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86808 + ... + 98885.

It is an arithmetic number, because the mean of its divisors is an integer number (74834682).

Almost surely, 2^1121400027 is an apocalyptic number.

1121400027 is a deficient number, since it is larger than the sum of its proper divisors (674632341).

1121400027 is a wasteful number, since it uses less digits than its factorization.

1121400027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185771 (or 185768 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1121400027 is about 33487.3114328398. The cubic root of 1121400027 is about 1038.9313563803.

Adding to 1121400027 its reverse (7200041211), we get a palindrome (8321441238).

The spelling of 1121400027 in words is "one billion, one hundred twenty-one million, four hundred thousand, twenty-seven".