1100300121 has 6 divisors (see below), whose sum is σ = 1589322410. Its totient is φ = 733533408.

The previous prime is 1100300077. The next prime is 1100300171. The reversal of 1100300121 is 1210030011.

It can be written as a sum of positive squares in only one way, i.e., 1013530896 + 86769225 = 31836^2 + 9315^2 .

It is not a de Polignac number, because 1100300121 - 2⁶ = 1100300057 is a prime.

It is a super-2 number, since 2×1100300121² = 2421320712545229282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 122255569 = 1100300121 / (1 + 1 + 0 + 0 + 3 + 0 + 0 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100300171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61127776 + ... + 61127793.

Almost surely, 2^1100300121 is an apocalyptic number.

It is an amenable number.

1100300121 is a deficient number, since it is larger than the sum of its proper divisors (489022289).

1100300121 is a wasteful number, since it uses less digits than its factorization.

1100300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122255575 (or 122255572 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1100300121 is about 33170.7720892957. The cubic root of 1100300121 is about 1032.3739884167.

Adding to 1100300121 its reverse (1210030011), we get a palindrome (2310330132).

The spelling of 1100300121 in words is "one billion, one hundred million, three hundred thousand, one hundred twenty-one".