1121040043 has 2 divisors, whose sum is σ = 1121040044. Its totient is φ = 1121040042.

The previous prime is 1121040017. The next prime is 1121040059. The reversal of 1121040043 is 3400401211.

It is an a-pointer prime, because the next prime (1121040059) can be obtained adding 1121040043 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121040043 - 2⁹ = 1121039531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121039999 and 1121040026.

It is not a weakly prime, because it can be changed into another prime (1121040013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560520021 + 560520022.

It is an arithmetic number, because the mean of its divisors is an integer number (560520022).

Almost surely, 2^1121040043 is an apocalyptic number.

1121040043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121040043 is an equidigital number, since it uses as much as digits as its factorization.

1121040043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1121040043 is about 33481.9360700662. The cubic root of 1121040043 is about 1038.8201743213.

Adding to 1121040043 its reverse (3400401211), we get a palindrome (4521441254).

The spelling of 1121040043 in words is "one billion, one hundred twenty-one million, forty thousand, forty-three".