1101123047 has 2 divisors, whose sum is σ = 1101123048. Its totient is φ = 1101123046.

The previous prime is 1101123043. The next prime is 1101123073. The reversal of 1101123047 is 7403211011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101123047 - 2² = 1101123043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101123043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550561523 + 550561524.

It is an arithmetic number, because the mean of its divisors is an integer number (550561524).

Almost surely, 2^1101123047 is an apocalyptic number.

1101123047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101123047 is an equidigital number, since it uses as much as digits as its factorization.

1101123047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1101123047 is about 33183.1741549840. The cubic root of 1101123047 is about 1032.6312987233.

Adding to 1101123047 its reverse (7403211011), we get a palindrome (8504334058).

The spelling of 1101123047 in words is "one billion, one hundred one million, one hundred twenty-three thousand, forty-seven".