1121100001 has 8 divisors (see below), whose sum is σ = 1281640320. Its totient is φ = 960655488.

The previous prime is 1121099983. The next prime is 1121100083. The reversal of 1121100001 is 1000011211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121100001 - 2²³ = 1112711393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121100401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3180 + ... + 47458.

It is an arithmetic number, because the mean of its divisors is an integer number (160205040).

Almost surely, 2^1121100001 is an apocalyptic number.

It is an amenable number.

1121100001 is a deficient number, since it is larger than the sum of its proper divisors (160540319).

1121100001 is an equidigital number, since it uses as much as digits as its factorization.

1121100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47903.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1121100001 is about 33482.8314364242. The cubic root of 1121100001 is about 1038.8386941681.

Adding to 1121100001 its reverse (1000011211), we get a palindrome (2121111212).

The spelling of 1121100001 in words is "one billion, one hundred twenty-one million, one hundred thousand, one".