1101012043 has 2 divisors, whose sum is σ = 1101012044. Its totient is φ = 1101012042.

The previous prime is 1101012041. The next prime is 1101012053. The reversal of 1101012043 is 3402101011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101012043 - 2¹ = 1101012041 is a prime.

Together with 1101012041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1101012041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550506021 + 550506022.

It is an arithmetic number, because the mean of its divisors is an integer number (550506022).

Almost surely, 2^1101012043 is an apocalyptic number.

1101012043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101012043 is an equidigital number, since it uses as much as digits as its factorization.

1101012043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1101012043 is about 33181.5015181652. The cubic root of 1101012043 is about 1032.5965977705.

Adding to 1101012043 its reverse (3402101011), we get a palindrome (4503113054).

The spelling of 1101012043 in words is "one billion, one hundred one million, twelve thousand, forty-three".