1011404121 has 32 divisors (see below), whose sum is σ = 1661721600. Its totient is φ = 532851264.

The previous prime is 1011404111. The next prime is 1011404179. The reversal of 1011404121 is 1214041101.

1011404121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011404121 - 2⁵ = 1011404089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011404121.

It is not an unprimeable number, because it can be changed into a prime (1011404101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304930 + ... + 308228.

It is an arithmetic number, because the mean of its divisors is an integer number (51928800).

Almost surely, 2^1011404121 is an apocalyptic number.

It is an amenable number.

1011404121 is a deficient number, since it is larger than the sum of its proper divisors (650317479).

1011404121 is a wasteful number, since it uses less digits than its factorization.

1011404121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1011404121 is about 31802.5804141739. The cubic root of 1011404121 is about 1003.7870140872.

Adding to 1011404121 its reverse (1214041101), we get a palindrome (2225445222).

The spelling of 1011404121 in words is "one billion, eleven million, four hundred four thousand, one hundred twenty-one".