1100001047 has 2 divisors, whose sum is σ = 1100001048. Its totient is φ = 1100001046.

The previous prime is 1100001041. The next prime is 1100001053. The reversal of 1100001047 is 7401000011.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1100001041) and next prime (1100001053).

It is a cyclic number.

It is not a de Polignac number, because 1100001047 - 2⁸ = 1100000791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100001041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550000523 + 550000524.

It is an arithmetic number, because the mean of its divisors is an integer number (550000524).

Almost surely, 2^1100001047 is an apocalyptic number.

1100001047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100001047 is an equidigital number, since it uses as much as digits as its factorization.

1100001047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1100001047 is about 33166.2636876691. The cubic root of 1100001047 is about 1032.2804429706.

Adding to 1100001047 its reverse (7401000011), we get a palindrome (8501001058).

The spelling of 1100001047 in words is "one billion, one hundred million, one thousand, forty-seven".