1011104021 has 8 divisors (see below), whose sum is σ = 1041214944. Its totient is φ = 981293040.

The previous prime is 1011104011. The next prime is 1011104027. The reversal of 1011104021 is 1204011101.

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 1011104021 - 2⁶ = 1011103957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011103993 and 1011104011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011104027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68135 + ... + 81636.

It is an arithmetic number, because the mean of its divisors is an integer number (130151868).

Almost surely, 2^1011104021 is an apocalyptic number.

It is an amenable number.

1011104021 is a deficient number, since it is larger than the sum of its proper divisors (30110923).

1011104021 is a wasteful number, since it uses less digits than its factorization.

1011104021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149971.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1011104021 is about 31797.8618935299. The cubic root of 1011104021 is about 1003.6877243059.

Adding to 1011104021 its reverse (1204011101), we get a palindrome (2215115122).

The spelling of 1011104021 in words is "one billion, eleven million, one hundred four thousand, twenty-one".