1110001601 has 2 divisors, whose sum is σ = 1110001602. Its totient is φ = 1110001600.

The previous prime is 1110001589. The next prime is 1110001649. The reversal of 1110001601 is 1061000111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 585591601 + 524410000 = 24199^2 + 22900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110001601 - 2³⁰ = 36259777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1110201601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555000800 + 555000801.

It is an arithmetic number, because the mean of its divisors is an integer number (555000801).

Almost surely, 2^1110001601 is an apocalyptic number.

It is an amenable number.

1110001601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110001601 is an equidigital number, since it uses as much as digits as its factorization.

1110001601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1110001601 is about 33316.6865249232. The cubic root of 1110001601 is about 1035.3993032480.

Adding to 1110001601 its reverse (1061000111), we get a palindrome (2171001712).

The spelling of 1110001601 in words is "one billion, one hundred ten million, one thousand, six hundred one".